12 Aluminum Bolt Spacers.
(4) 3/4" OD X 3/8" ID X 1/2" Thick
(4) 3/4" OD X 3/8" ID X 3/8" Thick
(4) 3/4" OD X 3/8" ID X 1/4" Thick
(If Buying More Than 1 Item I will Combine Shipping)