Measurements:
Cage is approx. 3" L x 2" W
Ring inner diameters: 1.9", 2.1", 2.2", 2.3"

Materials: ABS Plastic, Iron, Copper

Color: Black

Key Features:

Breathable design
4 gradually sized base rings
Cage locks with either the internal metal lock or with a plastic keyholder tag
Includes internal lock, 2 keys, locking pin, and 5 keyholder tags
Nickel-free