10 pack of a Rubber Spacer O-ring type Shim. I use these as uptravel limiters on the front shocks of my Kyosho buggies. ID: 3.60mmOD: 6.18mmThickness: 3.37mm Rubber Spacer / O-Ring / Shim 3.37mmSKU: E82-BU02100$6.99PriceQuantity*In Stock / Add to Cart