Contractors and DIYers, this 240-piece plastic shim set is one of those tool kit essentials that makes installation work so much more precise. You get six different thicknesses: 3/64 inch (1mm, green), 5/64 inch (2mm, black), 1/8 inch (3mm, white), 5/32 inch (4mm, grey), 13/64 inch (5mm, blue), and 15/64 inch (6mm, red) - 40 pieces of each size. The flat design makes them perfect for spacing tiles, leveling windows, curtain wall installation, and countless other construction and remodeling tasks. Made from durable PP plastic that won't wear, deform, break, or fade with normal use. Each shim measures 10cm long by 2.6cm wide (about 3.94x1.02 inches), giving you plenty of surface area for stability. The different colors make it easy to quickly identify the thickness you need without measuring. They're lightweight and stack neatly for compact storage in your tool bag. Using them is straightforward - just place the prongs in the grout joint or gap you're working with and adjust as needed. No special tools required. Having multiple sizes means you can handle various spacing requirements without improvisation. Whether you're a professional tradesperson or tackling home improvement projects, having a quality shim set like this saves time and ensures better results. The quantity is generous enough that you can use them freely without worrying about running out mid-project. They're one of those simple but indispensable tools that once you start using, you'll wonder how you managed without them for so long.