Set includes: The assorted case contains 8 sizes: Standard Blind Rivets M3.2x8mm, Standard Blind Rivets M4.0x10mm, Standard Blind Rivets M4.8x14mm, Large Blind Rivets M3.2x10mm, Large Blind Rivets M4.0x10mm, Large Blind Rivets M4.0x14mm, Large Blind Rivets M4.8x14mm, Large Blind Rivets M4.8x18mm. Material: The blind rivets are made of high-quality aluminum, rustproof, corrosion-resistant, and reliable. The rivet's pull shank is smooth, burr-free, and works well, making it easy to install. Common application: Ideal for joining materials such as sheet metal, plastics, rubbers, and laminates. Useful and easy to install: This will cause the jaws to retract, extending the mandrel, which will then pull the mandrel head into the rivet body, securing the rivet. Caution: Commonly used on softer materials where installation could damage the material or cause tearing.