HQ9 Replacement Heads, Shaver Heads Blades Cutter Replacement for Compatible with Philipss Norelcos SpeedXL 8240XL 8140XL 8150XL 8160XL 8170XL, 8100 Series, 8200 Series, 9100 Series, and PT/AT900

these blades although correct size but does not cut hair so waste of money and time

El repuesto se ajustó perfecto a la razuradora y funciona bien, llegó a tiempo, por lo tanto, todo excelente, volveremos a comprarlo

These are perfect we weren't able to buy locally as they do not make these anymore. Took a long time to arrive, at one point i contacted the seller as the tracking stopped.

Good product as described quick ship.

Inefficient shaving heads

Worthless! I've been a happy Norelco user for 50 years and always satisfied with the original shavers and blades. But this brand of replacement blades is terrible! They simply don't cut day-old whiskers most of the time. You rub and rub and rub and about the tenth time the blades finally cut off half the length of any particular whiskers; then repeat to cut another half of the half, etc., and keep trying. I don't have 15 minutes every day to devote to these blades. I don't know what their problem is -- wrong angle, not sharp enough, poor screen guide, or what?? I gave them a full try for several weeks, knowing that sometimes blades need to lap in for best results. No luck. Finally went and dug up one of my older models (with original blades) and it cuts fine. When I want to re-blade my newer model, I'll be sure to shop at Norelco, not these failures. Sent a message via Amazon to the supplier but haven't heard in a week, so here's their public slap. Don't buy from them!