Specification Brand : Generic BulletPoint1 : Product Name: Ball Transfer Unit; Material: Metal BulletPoint2 : Ball Diameter: 16mm/0.63"; Total Size: 49 x 32 x 21mm/1.9" x 1.3" x 0.83"(L*W*H) BulletPoint3 : Color: Silver Tone; Net Weight: 244g BulletPoint4 : Package Content: 6 x Ball Transfer Unit BulletPoint5 : Hole Size: 4 x 38mm/0.16" x 1.5"(D*Centre Distance) Color : Multiple colors ItemName : Qtqgoitem 16mm Dia Metal Ball Transfer Bearing Unit Casters Universal Wheel 6pcs (model: 097 b48 e4f 657 edb) ItemTypeKeyword : ball-transfers Manufacturer : Qtqgoitem Material : Composite ModelNumber : 097b48e4f657aedb3f0ed4b218fe83 PartNumber : 421c5f74-f8ee-a721444f4aec8d ProductDescription : 16mm Dia Metal Ball Transfer Bearing Unit Casters Universal Wheel 6pcs Features a 360 degree swivel mounting plate attached to a double wheel roller system. Ball Transfer Unit is perfect replacement for your broken one on your office chair. ProductSiteLaunchDate : 2022-12-07T05:58:10.547Z Size : Small Style : Wire Collated UnitCount : 1 UnspscCode : 31162702