Marshal Grip spacers are small, T-shaped tools used to provide even gaps between the tile joints during installation. It is a crucial part of the tile application process, providing a professional finish and even distribution between adjacent tiles. A tile installation done by using the right application tool, like Marshal Grip spacers, has a clean look and straight grout lines when the adhesive dries. Marshal Grip spacers for tiles come in different sizes:1.5, 2, 3, 4, 5, 6 ,8 and 10 mm.