Arabic name: concrete nail walls of 25 mm name in English: Total tac918253 Concrete Nail Country of origin: China brand: Total product description and its benefits: This screw is used to install heavy objects on concrete or walls made of stone. Made of stainless steel to prevent rust and improve durability. It can be used in the open air due to its tolerance of various weather factors. It is easy to install and disassemble when needed. Technical points: Color: Silver measurement: 25 mm packed with a plastic box