Specification Brand : Generic BulletPoint1 : Product Name : Ball Transfer Unit;Material : Metal BulletPoint2 : Fixing Thread Diameter : 4mm / 0.16";Wheel Diameter : 15mm / 0.6" BulletPoint3 : Hole Distance : 39mm/ 1.5";Total Size (Approx.) : 50 x 33 x 22mm / 2" x 1.3" x 0.87"(L*W*H) BulletPoint4 : Color : Silver Tone;Weight : 166g BulletPoint5 : Package Content : 4 x Ball Transfer Unit Color : Silver ItemName : Qtqgoitem Metal Flange Mounting Ball Transfer Units Conveyor Roller 4pcs (model: 579 0e4 50f 42c 760) ItemTypeKeyword : ball-transfers Manufacturer : Qtqgoitem Material : Composite ModelNumber : 5790e450f42c9760958ca8918045a0 PartNumber : 40caa3dd-f8ee-4f81d67deb9b63 ProductDescription : Metal Flange Mounting Ball Transfer Units Conveyor Roller 4pcs 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 : 2022-12-07T05:56:44.392Z Size : Small Style : Wire Collated UnitCount : 1 UnspscCode : 31171500