Durable accessories for daily use: The trigger snaps can be used in many ways, such as a lock to a small cage, a connection between 2 things, such as a hook. The trigger snap hook is widely used, you just pull down the trigger and it will open to 0.47 inch maximum. when you release it, then it will reset. Overall size: 2.32 x 0.82 inches Inner diameter of the lower ring: 0.47 inch Inner diameter of upper side: 0.47 inch Opening: 0.47 inch maximum 2 Choices of quantity: 10PCS/20PCS Durable: 10PCS, Made of zinc alloy, trigger snap has high hardness and is sturdy. Weighs 22.5g each and the overall size is 2.32 '' x 0.82 ''. The durable design enhances load-bearing capacity Upgrade Design and Great Size: The trigger snap hook is designed with a large opening - 0.47 inches, and the inner diameter of the circular ring on top is 0.55 inches. The inner diameter of the D-ring (can rotated 360 degrees) is 0.47 inches, and both ends can be used to connect things Smooth Surface - Easy to Reset: The trigger snap has a smooth surface, making it easy to pull down the trigger and reset it when released, which is effortless Widely Used: The trigger snap hook can be used in various situations, such as bag straps, belts, cages, key chains, as a connecting and fixing function Daily Use: 10PCS/20PCS, the snap hooks can help to solve many small problems, they are easy to use and practical