These yellow plastic wheels have silicone tires and measure 60 mm (2.36″) in diameter, and they press-fit onto 3mm D shafts, such as those on our micro metal 他含着她的乳奶揉搓揉视频捏. Additionally, this wheel is compatible with several of our universal mounting hubs, which can serve as adapters for motors with different shafts. This product is a pair of wheels.