What will get: the package comes with many pieces of double ended bolt snaps, sufficient quantity for your different use, they are in large flexibility, easy to come and go, which are safe and convenient to use Appropriate dimension: the bolt snap is in 3 sizes for you to select; Please note don't overload for your safety, working load limit 110 lb (50 kg), which can be applied flexibly within its acceptable range Reliable material: the double ended snap hook is made of quality zinc alloy material, sturdy and not easy to break, also will not easily rust, it would be nice to simply make key rings with or using these for a leash to collar connection Practical features: the double-ended design makes chain more versatile, the spring-loaded bolts provide secure closure and easy-open thumb lever, which can be applied to home, farm and recreational applications Scope of usage: the design of the metal snap hook is suitable for using with rope, chain, straps, animal leashes, horse tack, and also could be applied for a gate latch, a bucket hanger, hanging feed tubs, hay bags in the stall and other uses