*8.90mm diameter - Includes three valve shims in each size between 1.74mm and 2.58mm in .04mm increments. 69 shims in total. (example: 1.74mm, 1.78mm, 1.82mm, 1.86mm) *
ProX Valve shims are made of premium materials. Specified heat-treatment processes ensures the hardness of the shims to offer maximum durability and less wear. ProX shims are precision machined to the exact OEM size specifications. All kits contains 3 shims in different sizes, with a handy plastic storage box with seperate compartments to stop your shims from intermingling.