The Shark Shim Small U Shim Brick Pack contains 100 durable, precision-made U-shims across four incremental thicknesses - 1/32" (1mm), 1/8" (3mm), 3/16" (5mm), and 1/4" (6mm) - each colour-coded for quick, easy identification on site. The open U-slot allows for lateral insertion around existing fasteners, bolts, or studs without the need for disassembly, saving significant time on installation and adjustment tasks. This versatile 100-piece assortment provides maximum on-site flexibility across a wide range of shimming applications.