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 toggle latch clamp is adjustable. Simply turn the adjustment lever to tighten or loosen. Adjustable distance: 2.6 inches to 3.3 inches. Holding capacity: 660 lbs. Includes a lock hole for added security. EASILY INSTALLED: Easy to install. Attach the toggle clamp and hook, then adjust to the desired distance using the adjustment lever. MULTIPLE PURPOSES: This lockable heavy-duty toggle latch clamp is suitable for various applications, such as securing doors, cabinet doors, storage boxes, tool boxes, cases, smoker lids, jigs, and tool fixtures. PACKAGE: Includes 2 pieces. If you have any issues, please for assistance.