MATERIAL: Our toggle latch clamps are made of carbon steel, durable and sturdy. The galvanized coating provides rust resistance, corrosion resistance, and waterproof performance. ADVANTAGES: This latch action toggle clamp is adjustable. Simply turn the adjustment lever to tighten or loosen. Adjustable distance: 2.6 inch to 3.3 inch. Holding capacity: 660 lbs. Includes a lock hole. EASILY INSTALLED: Easy to install. Attach the toggle clamp and hook, then turn the adjustment lever to set the desired distance. MULTIPLE PURPOSE: This lockable heavy-duty toggle latch clamp can be used in various applications such as securing doors, cabinet doors, storage boxes, tool boxes, cases, smoker lids, jigs, and tool fixtures. PACKAGE: 2 packs included.