Flexi-Felt’s laminate floor protectors are a bendable, cupped shape with an opening on top. You simply pull back the opening, and place the swivel chair floor protector overtop the foot of the swivel chair. The bottom of these laminate floor protectors has a piece of durable felt, which is what allows the chair to glide across the floor while reducing scratching and noise. The felt consists of a special, soft, high density wool blend that outperforms any other laminate floor protectors available for purchase.