Magnusson Shim wedge, Pack of 20

These spacers are so useful not only for flooring, but also for many other applications. I used them for fitting a new door frame, and I was able to get the exact gap I wanted between the frame & the stud. Each spacer tapers from 2mm to 7mm, but two or more can be combined to give a bigger width, and the serrations lock them together. They can be cut at the required length if need be. A very versatile & useful product.