Skull Bell Hanger / Mount for Motorcycle Bolt & Ring Included fits all bikes Road King Street Glide Harley Davidson Skull is made of brushed stainless steel and comes with 1/2 split ring and 5/16" black button head bolt and nylock nut Skull Measures 2 1/8" from the center of the 5/16" mount hole to the center of the ring hole - 2-1/5" H x 2-9/16" W total This skull is the absolute best and coolest way to mount your Bell to your motorcycle skull has a brushed finish that really shines Bell not included