MATERIAL: Our toggle latch clamps are made of carbon steel, durable and sturdy. The galvanized coating provides anti-rust, anti-corrosion, and waterproof properties. ADVANTAGES: This latch action toggle clamp is adjustable. Simply turn the adjustment lever to make it tight or loose. Adjustable distance from 2.6 inches to 3.3 inches. Holding capacity: 660 lbs. Includes a lock hole. EASILY INSTALLED: Easy to install. Fix the toggle clamp and hook, then turn the adjustment lever to set the proper distance. MULTIPLE PURPOSE: This lockable heavy-duty toggle latch clamp can be used in various situations, such as locking doors, cabinet doors, storage boxes, tool boxes, cases, smoker lids, and for making jigs and tool fixtures. PACKAGE: Includes 2 clamps. If you have any issues, please contact us—we offer a replacement or refund within 30 days.