This black sleeve reduce noise and protects all types of floors, they're perfect for schools. This durable Chair Tip consists of a vinyl sleeve and has a reinforced rounded felt bottom. Simply slide the Chair Tip over the chair leg to prevent floor damage and to reduce noise associated with moving chairs. Slip easily over chair legs and stay put without adhesive. Durable, and last longer than standard felt protective pads. Recommended for vinyl, tile, linoleum, ceramic, carpet, wood and marble.