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🚽 Upgrade your throne with silent luxury and effortless hygiene!
The Mass Dynamic D-Shape Toilet Seat is a premium, UK-standard fit designed for D-shaped pans with adjustable hinges. Crafted from durable urea-formaldehyde, it features a soft-close mechanism to prevent slamming, a quick-release button for easy cleaning, and a top-fix installation system that saves time and effort. Its non-slip buffers ensure stability, making it a practical yet stylish upgrade for any modern bathroom.


| ASIN | B08Q3GCQKN |
| Best Sellers Rank | 839 in DIY & Tools ( See Top 100 in DIY & Tools ) 8 in Toilet Seats |
| Brand | MASS DYNAMIC |
| Colour | White |
| Country of Origin | China |
| Customer Reviews | 4.2 4.2 out of 5 stars (4,833) |
| Included Components | 360 Adjustable stainless hinges |
| Item Dimensions L x W | 45L x 36W centimetres |
| Item Type Name | Toilet Seats |
| Item Weight | 2.74 Kilograms |
| Manufacturer | MASS DYNAMIC |
| Material | Duroplast |
| Model Number | 1603.1 |
| Operation Mode | Manual |
| Part Number | 1603.1 |
| Shape | D-Shaped |
| Style | D-Shape Signature |
| Unit Count | 1.0 count |
R**Y
Good fit
Marvellous ,good quality and good price.
G**N
Overall ok - plastic seat doesn't feel very sturdy, pads don't sit flat to toilet.
First impressions - It doesn't feel as sturdy as my old toilet seat, it's just normal plastic and feels less hard wearing - The top fitting connectors were so simple to install. A massive upgrade from my old underneath fittings which required me to reach under and around to tighten them - There are 4 underneath pads on the seat and the front 2 sit flat to the toilet rim but the back 2 are slightly raised and don't touch the toilet. This could potentially be a problem in future with the seat cracking with the constant use and pressing down on it * - The soft close fitting are what you'd expect. Silent, but slow. Overall ok, some concerns about the plastic quality and the pads not sitting flat to the seat but first few uses have been fine. It has only been used for just a few hours at the time of writing this review so I may come back and update this in a few months. * I used my old toilet seat pads to help with this by trimming down the old pad and then using some bathroom silicone to glue the old pad to the new to create a thicker pad. The back ones now sit flat to the seat but the front ones are marginally higher. It has taken the pressure off the back hinge which should reduce any potentially cracking but I think I will make the front ones slightly thicker using the old pads too so theyre level. I've added pictures to show the difference.
B**N
Simple to fit and stylish
I remember spending far too long lying uncomfortably on a bathroom floor trying to secure traditional toilet fittings, only to have the seat move again or be misaligned. This system is a total contrast - simple to do and the seat was replaced in 10 minutes. It is also good to know that if I have aligned it badly, it is very easy to take the seat off and adjust. Brilliant. Also will be much easier to clean. Sadly, the first seat supplied was faulty - the release mechanism wouldn't release - but the Amazon return system worked well and the perfect replacement arrived two days later. So I highly recommend both the product and the customer service.
T**E
Terrific Toilet Seat
Took ages to find a square toilet seat that would fit our RAK Ceramic Toilet. didn't know if it would be the right shape but took a chance and so glad I did. Perfect size shape and super build quality. The soft close action is a bonus and works for both the seat and the lid...no more waking the family in the middle of the night. Comes with comprehensive instructions and 2 sets of installation screws that work with both normal and close coupled toilet basins. HIGHLY recommend this product
N**.
The fixing methods supplied DO NOT WORK!!
I purchased two of these, and firstly I’d like say that this toilet seat is of very good quality, and the soft close is also good. However, I will very quickly follow that compliment with the problem I encountered. It is IMPOSSIBLE to securely attach the seat to the lavatory pan without it wobbling using the connection materials supplied. Now, I’m not stupid. I can read and understand instructions and am quite adept at straightforward DIY. I struggled for over an hour to securely attach the toilet seat, trying the different fixing methods provided, effing and jeffing without any success 🤬 Not one to be defeated, I ended up using some of the fittings from the old seat and some rubber washers to achieve a secure, no-wobble connection. I took this knowledge with me into the next bathroom and fitted the second toilet seat inside 10 minutes! They both look great and are working well now, but please be aware of this issue when buying.
M**S
Quick and easy replacement
Near perfect fit for Roca close coupled unit, the metal fixing bolts are so much better than the usual plastic items
S**N
Great seats but need fixing adjustment.
So, I purchased three of these. They have top fittings that expand in the ceramic to provide stability or NOT. The seats slide around. I perused this in detail... The problem is the fixing bungs lift the plastic flange off the ceramic and hence any friction is lost. By utilising bottom fixing.... removing the expanding bung... the flange contacts the ceramic and before tightening fully doesnt move... So, when tightened it is great. Problem solved. Note this plan is no good if you do not have bottom access for fixing. The seats are well made and Soft Close is good. Stainless caps had some superficial impurities that rusted.... BUT washed off. Like swarf.
P**L
Good fit
Great replacement seat at a reasonable price
A**O
Facile da montare , misura giusta
C**N
Très bon produit conforme à la description
C**N
Super
L**E
This product was great, but 2cm too short, do you have another option I can use?
P**O
Il prodotto è di qualità medio bassa, realizzato in polipropilene con spessore appena sufficiente per il suo impiego. Nel mio caso l’oggetto è arrivato danneggiato, probabilmente sia a causa dell’imballo insufficiente che della bassa qualità realizzativa. Non ne consiglio l’acquisto, meglio optare per prodotti più costosi ma durevoli.
Trustpilot
2 weeks ago
4 days ago