Greatideas Non-Slip Mat and Rug Grippers - Stop Your Mats and Rugs from Slipping and Sliding! Black 4X Pack

4 double pads (can break in half to make 8). Adhesive pads to connect gripper to top rug are excellent. Does not keep my entryway rug/mat from slipping on the carpet. Carpet is a tight short pile synthetic but I don't think that matters. Maybe if the little spikes were twice as long? If you're happy with a couple of days before repositioning it might work for you.

slapped the entire pack on the underside of my winwing rudder pedals. they provide enough grip that even at full pressure on the pedals trying to stop my a-10, it doenst move. my bad piloting skills aside, perfect hold.

mounted fine on carpet runner, but did not grip enough to hold it in place

I sued this on my rug that goes over the carpet, It does not work as I feel the spikes are to short. the carpet moves with these on the rug. I would not purchase again. sorry

Didn’t work. Was trying to keep a thin entryway rug with rubber bottom in place over carpet. The rug still moves towards the door, but slower. Does not keep in place.

The product works for thinner rugs. I had a thicker runner and the grippers did not "dig" in enough to hold the runner. On a thinner larger rug the grippers worked fine. I am not sure if the product is designed for rugs on carpet. I would suggest longer spikes if the purchaser is intending on using the item on carpet.

Works well to hold auto floor mats still on carpet.

These are worthless. Followed the direction and they don’t hold rugs in place. Don’t waste your money on these.