1-1/2 X 3 X 1/4 Interlocking Plastic Horshoe Shims- 100/bag

No matter how you stack 'em, these shims stay together! Traditional wood shim products have long been used in the building industry and present a variety of limitations - rotting, shrinking and swelling as well as others. Invented by a window installer to simplify the use of Multiple shim applications in window installations, Glazelock Shims reduce material and labor costs and provide a secure and stable solution to your shimming needs.