Package Content: 36pcs 25mm white plastic tube insert caps. Size: Head Diameter: 25mm; Total Height: 2.3mm. Material: The plastic tube insert plug is made of durable plastic. Impact-resistant, wear-resistant and UV-resistant. Floor Protection: The plastic tube insert plug likes a glove for furniture, protects your beautiful hardwood, ceramic tile and linoleum floors from damage and scratches. Additionally, protective caps help extend the life of your furniture by protecting it from hard outdoor surfaces such as gravel and concrete. Widely used: Chair leg end protector, fitness equipment, fence post end caps, round pipe or tube finishing end cap. Please measure the inner diameter of the round tube before purchasing.