This is the metal base and lever used to secure the hive for transport, or just to protect it from coming apart if a branch or animal hits it, or in strong winds. Used with the thin metal strap, it lets you secure a single to a triple hive. The simplest and safest device to secure your hives. 

Discounted prices are applied for bulk buys:
$ 14.00each for 100+
$ 13.50 each for 300+