ITEM NAME:20x 7/8" to 1" Risers Clamps Conversion Shims Spacers Washers Dirt Bike .like-pro-float .like-pro-price-both{clear: both;.20 Pieces Conversion Shims Spacers. Simply place one shim each side of clamp area on handlebar and insert into stem, tighten as normal. Made of Aluminum Alloy,sturdy and durable to use. Size: 22 mm.