https://models.spriters-resource.com/custom_edited/sonicthehedgehogcustoms/asset/531415/
Metal Knuckles (Sonic R Edit) - Sonic the Hedgehog Customs - Custom / Edited - The Models Resource
Metal Knuckles (Sonic R Edit) - Sonic the Hedgehog Customs - Custom / Edited - Archiving and preserving video game media since 2003!
metal knucklesthe hedgehog