Review on Set Of 4 Large Caramel Color Slipstick CB840 3-1/4 Inch Bed Roller / Furniture Wheel Gripper Caster Cups by Adrian Summers

When I first opened these to look at I was very disappointed. The white ring that is supposed to be the part that keeps the item from sliding was really quite hard. I expected it to be more rubbery and grippy. I almost just sent them back without trying them. But I put them under the bed wheels because well. I had them. They work and seem to work well. I do still have some small concern that the grandchildren will still move the bed around while playing. But at least it doesn't slid while you are moving around in your sleep. They do seem well built and sturdy. I can't see them breaking anytime soon.