Specification Brand : uxcell BulletPoint1 : Thickness: 4mm/0.16"; Inner Height: 14mm/0.55"; Overall Height: 18mm/0.71"; Overall Size: 30x15mm/1.18"x0.59"(LxW); Thread Size: M6(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 the before tapping it into position. ribs provide a secure fitting and prevent the need for additional adhesives. 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 : White ExternallyAssignedProductIdentifier : 00197644069026 ExternallyAssignedProductIdentifier1 : 0683194709913 ExternallyAssignedProductIdentifier2 : 683194709913 ItemName : uxcell 6Pcs Inserts for Square Tubes with M6-1.0mm Thread, for 1.18"x0.59" OD Square Tube, Black Plastic Plug Caster Insert Chair End Caps Furniture ItemPackageDimensions_Height : 0.71 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 6 ItemShape : Square ItemTypeKeyword : hardware-plugs Manufacturer : uxcell Material : Plastic MeasurementAccuracy : +/- 0.1% ModelNumber : a23101900ux0310 NumberOfItems : 6 NumberOfPieces : 6 PartNumber : a23101900ux0310 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 them 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, tables, shelves, beach chairs, desk legs, and so on.