Specification Brand : uxcell BulletPoint1 : Material: Plastic; Thickness: 6mm/0.24"; Inner Height: 17mm/0.67"; Overall Height: 23mm/0.91"; Thread Size: M8*1.25; Diameter: 25mm/0.98"; Package Includes: 12 x Threaded Tube Inserts (Does Not Contain Adjustable Leveling Legs) BulletPoint2 : Material: The tube plug nut is made of black plastic, with thread, can be fitted with casters and adjustable pads, has an adjustable height, is not easy to deform, and has more stable support. BulletPoint3 : Effect: The thread tube plug can choose caster installation for easy movement; choose adjustable feet for balance, protect the floor, and be anti-skid and noise reduction. BulletPoint4 : Easy Installation: The chair leg plug comes with ribs, only requiring lining up with them before tapping it into position. Note: It will be a bit tight during installation. You can choose a size that is 1-2mm different from the installation diameter or put them in boiling water to soften them before installation. BulletPoint5 : Application: The nut plug is for office or household furniture. such as mechanical equipment, fitness equipment, racks, tv stands, table, shelves, beach chairs, desk legs, and so on. Color : Black ItemDisplayDimensions_Length : 16 centimeters ItemDisplayDimensions_Width : 16 centimeters ItemName : uxcell 12Pcs Inserts for Round Tubes with M8 Thread, for 25mm/0.98" OD Round Tube, Round Black Plastic Plug Caster Insert Chair End Caps Furniture Leg Plug ItemPackageDimensions_Height : 1.57 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 12 ItemShape : Round ItemTypeKeyword : hardware-plugs Manufacturer : uxcell Material : Plastic ModelNumber : a22111600ux0415 NumberOfItems : 12 NumberOfPieces : 12 PartNumber : a22111600ux0415 ProductDescription : Description: 1. Material: The tube plug nut is made of black plastic, with thread, can be fitted with casters and adjustable pads, has an adjustable height, is not easy to deform, and has more stable support. 2. Effect: The thread tube plug can choose caster installation for easy movement; choose adjustable feet for balance, protect the floor, and be anti-skid and noise reduction. 3. Easy Installation: The chair leg plug comes with ribs, only requiring lining up with the before tapping it into position. ribs provide a secure fitting and prevent the need for additional adhesives. 4. Application: The nut plug is for office or household furniture. such as mechanical equipment, fitness equipment, racks, tv stands, table, shelves, beach chairs, desk legs, and so on.