They have many small holes in the layout system, which are easy to use for fixing, and can be applied to multiple working panels, which are convenient but practical. The layout block is 30.48 cm, freely cut, suitable for most sizes.Freedom bending, easy layout of straight lines or arbitrary angles. The layout block is made of heat - silicone and can be used for a long time. Bringing sales can help you fix the position of color glass well. It is very suitable for beginners and . Color glass kits can improve the quality and efficiency of work and save your time and energy.