Stackable wedge shaped shims are ideal for installations, adjustments, and general maintenance. Interlocking horizontal and vertical ridges keep shims in place and allow for small, precise adjustments . Made from thermoplastic polymer, they won’t break down, shrink or swell in damp and humid conditions like wood shims. Absorbs vibration, reduces noise, and is a great stabilizing cushion. Trims easily with knife or snips.It is available in pack of 37.