Application and use: Designed for use as a leveler, 1.5 mm cross spacer, and standard 1.5 mm, 2 mm, 2.5 mm, and 3 mm spacers.High quality and durable. Made from high impact-resistant semi-crystalline thermoplastic, and the steel part is made of 1.4 mm thick stainless steel, allowing you to use them with plastic spacers.1.5 mm to 2.5 mmReusable and durable. Save a lot of money by reusing them again and again. Once the tiles are installed, simply turn them counterclockwise and remove the main anchor; you may need to...hammer gentlySimple and easy to use. Unlike normal leveling wedges and clamps, this new system requires no tools unless you need to tighten it very firmly, and the special wrench is included. It is quite easy to attach or remove.with the key to improving the speed of tile installationSuitable for tile thicknesses from 3 mm to 16 mm, but can be used with tiles up to 18 mm thick.