Handi-Shim HS116100RD Plastic Construction Shims/Spacers, 100 Pack, 1/16-Inch, Red Cost 20 Percent less than the average shim and are available in four color-coded thicknesses and 15 combinations of sizes and quantities Handi-Shims form a secure, flat base with only one shim (not needing to overlap two wedge-shaped shims) Made of plastic, Handi-Shims resist compression, will not rot, and can be reused in many applications Handi-Shims can serve as high-precision spacers and scribes Handi-Shims can be easily and neatly cut into smaller units for small-scale jobs and can be easily secured using a pre-drilled screw hole