Specification Brand : Hyuduo BulletPoint1 : [ Replacement] - With great workmanship, these wheels are ideal replacements for old or damaged robot parts. BulletPoint2 : [Premium Quality] - Made with materials and precise processing, these wheels are excellent robot accessories. BulletPoint3 : [Secure Fixation] - Utilize 6-32 hex socket screws to firmly secure the axle in place. BulletPoint4 : [Anti-slip Design] - The built-in hub matches 6mm d-type steel shafts to prevent slipping during operation. BulletPoint5 : [Improved Traction] - 90Mm wheels feature a metal hub with rubber tread for better grip on surfaces. Color : One Color ExternallyAssignedProductIdentifier : 5028890082598 ItemName : 2PCS Metal Robot Wheel, Replacement, Neoprene Tire Tread, Great Traction for Industrial Robot Parts ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 9 centimeters ItemPackageDimensions_Width : 9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : robot-parts Manufacturer : Hyuduo ModelName : Hyuduobi05dmh6g8 ModelNumber : Hyuduobi05dmh6g8 NumberOfItems : 1 PartNumber : Hyuduobi05dmh6g8 ProductDescription : 1. 90mm wheels with built-in hub made of metal with rubber tread for better traction 2. Built-in hub matches 6 mm D-type steel shaft to prevent shaft slipping 3. Used with 6-32 hex socket screws to secure the axle 4. and great processing, good accessories for robot 5. Great workmanship, replacement for the old one