Features:1.High quality screws are rust and corrosion resistant, U-clamp is made of spring steel with black oxidation treatment, wear resistant and rust proof. Long service time, durability and high hardness ensure safety and long term indoor or outdoor use.2. These U-clip and screw combination kits are super easy to use and small in size, easy and firm to fix for long term use. 3. The U-clamp and screw combo kit is widely used and comes with a plastic chart storage box with product specification labels on the box for quick identification.4. U-clamp and screw combination kit contains a variety of sizes, sufficient quantities to meet your various needs.5. The U-Clip and Screw Assemblies are neatly packaged in a compact, see-through compartmentalized plastic storage box for easy storage and portability.Specifications:Single box of product weight: 324gProduct box size: 22*11.2*3cm Package List:1 pack x U-Clip and Screw 170Pcs inside