Made of high-quality stainless steel material, high hardness, not easy to corrode, Plastic handle, comfortable to hold, durable and efficient and has a long service life. No installation Easy and convinient to operate, Detachable design for easy carrying The horizontal bubble design. With our circular saw guide rail, you' ll get straight, accurate, repeatable cuts easily every time. Simply mount your saw to the universal Slide on the circular saw track-the width of the cutting board can be adjusted freely from 2-92 cm. So, all you have to do is lock the saw in at the measurement you want-up to and then make your cut. The circular saw helps make straight, accurate, repeatable cuts without measuring, marking, or having to keep the saw on the cut line. Our saw quide does this with a long guide that follows the straight edge of the sheet you are cutting. Suitable for wood, gypsum board, marble, ceramic tiles and other materials, and can be used for cutting machines, jig saws, trimming machines.