InvisiHold Square Furniture Gripper, Floor Protector Pad Dense Rubber-Set of 4 (4" square) rubber/80%/fiber/20% Made in USA Natural textured rubber surfaces grab floor and furniture No adhesives or sticky tape; Simply place InvisiHold directly under furniture leg Extremely dense 1/4" thick gripper pad absolutely stops furniture moving, stays out-of-sight Made in USA of American rubber and dense fiber center InvisiHold is effective to stop furniture moving on all floors and protect floor from damage