Hey DIYers and mechanics, these PVC slotted shims are super handy for all kinds of projects! The bright yellow color tells you they're 0.020 inches thick - no guessing needed. Each shim measures 2 inches by 2 inches with a 0.625 inch slot that fits perfectly around bolts and screws that are already in place. The top tab makes them easy to position exactly where you need them. Made from durable PVC plastic, these shims won't conduct electricity and they resist corrosion, chemicals, and oils. Perfect for leveling machinery, filling gaps in equipment, creating tighter seals, or just adding that perfect amount of spacing between parts. Since they come in a pack of 20, you'll have plenty for multiple projects or replacements. The opaque material is tough enough to handle compression without cracking or deforming. Whether you're working on automotive repairs, woodworking projects, or industrial equipment, these color-coded shims make precision spacing simple. They meet Federal Specification L-P-535 standards too, so you know you're getting quality. Much better than trying to cut your own shims from random materials! Keep a pack in your toolbox - you'll be surprised how often you reach for them once you have them available.