SKTREX 4 Wheel Silent Trolley Assembly Rollers Four Bearing Trolley Assembly for 1-5/8" Wide and All 1-5/8" or Taller unistrut Strut Channel with M10 Bolt and Lifting Eye Nuts

Excellent craftsmanship. Product as described and functions as expected. Mulitple items purchased and yet to be dissatisfied. Thank you kindly. I look forward to continuing doing business with you and your company in the future.

Works as expected. Very good finish.

Worked for my needs. I was able to move a water heater by myself with this trolly.

Looks like great quality and works fine for my intended purpose. My only issue was the bolt head is too high for my application. I mounted a unistrut railing in the top of my garage and the trolley was not able to move past the mounting screws. These screws were very low. The bolt, on the trolley, sits almost to the top of the unistrut. I was able to fix this by cutting the bolt head off on the trolley and welding the bolt to the trolley. Gave me just enough room to have the trolley roll down the track.

These are awesome. We used them to build a bike rack in a shed. They allow us to move the bikes side to side for easier access. The bearings are well lubricated and the parts are all strong. They are simple to install. Also for the price they are high quality.

These work really well, I used them for custom pocket doors because the big box store components were binding up with the weight of my doors. Even under weight these roll smooth and the mounting is strong! Note that The clearance inside the strut bar is tight so I suggest you countersink your mounts.

Easy to use, good bearings. Value for money was great. Extremely durable and the materials size and fit were all accurate.

Worked great on my big sliding door