➤ Tighten the bolts and nuts when installing the circular saw. ➤ The circular saw is NOT included in this product. ➤ The rail is NOT included in this product. ➤Before and after using this product, check that all the bolts and nuts are securely fastened. ➤ You are responsible for your safety. ➤ The design of this product and its accessories may be modified to improve the quality of the product. ➤ The packaging process of the product is filmed by CCTV and sent out.