The hooks

you can change the size to whatever you want. here. are the descriptions for the 3 different editions

Hook to hole : The hook to hole is useful. Attach wire or rope to the hole end then you can use the hook to attach to another object. Useful for winches or holding a Chook pen door shut.

Hole to Hole : This is useful for when you need to attach 2 ropes or wires together.

Hook to hook : This can help. It can also be used for locking doors.