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Your cart is empty.Tired of twisting wire into a coil or trying to track down washers to shim your receptacle or switch? With the Shim My Box all you have to do is simply cut the length you need from this electrical shim and voila, you’ve got a tight fitting device. The Shim My Box can be adapted to any length you need.
Jacob Knudsen
Reviewed in the United States on June 18, 2025
I like these more than the accordion style in the past, quick easy and effective.
Brandon R
Reviewed in the United States on August 14, 2024
These are awesome because they are cut to fit. I used them after a backsplash was installed and they work perfectly. I would definitely recommend them.
ShamWow
Reviewed in the United States on April 13, 2024
Trust me! Try these out. They are so much faster, cleaner, and easier than caterpillars! Just wish they were easier to get my hands on!
Andrews electric
Reviewed in the United States on June 5, 2023
We've used wire wrapped around the screw and the ideal brand "caterpillars" for years until I found these " shim my box" 😂 they work great, quick and simple ...