25 mm Lockable Roller buckle for cuffs or collars.
Buckle that is used for latex or leather cuffs so that you cannot escape.
This buckle has several names, such as:
Lockable buckle, padlock buckle, Padlock buckle, Lockable buckle, Lock buckle, Buckle with lock, etc.
Roller buckle dimensions = 38 x 40 mm.
Padlock eye size = 4.5 mm.
Used for straps / belts that are 25 mm wide.