This is half the size of the standard Hive Lock 115 mm x 45 mm. 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 bumps it, or in strong winds.
Used with the standard 15 mm wide metal strap, it lets you secure a single to a triple hive. The simplest and safest device to secure your Native Hives.