Size:15x30mm It is great for protecting your household furniture tables and chairs from moving or sliding around, also can protect your tile, wood or vinyl floor from scratches. Keep your couch from leaving a big dent in the floor when nothing is under the legs. They will work great on furniture legs, such as chair leg, table leg, couch leg, etc. Rubber material in black color, and flat base designed for standing steady. Please check your table leg dimension to fit the rubber foot before buying this item.