a) Made from engineering plastic ABS.
b) Prevents access to the main cylinder valve.
c) Accommodates neck rings up to 35mm, and max diameter inside 83mm.
d) Easy and efficient installation to save you time.
e) Can be locked with 2 padlocks, lock shackle diameter up to 8.5mm. Lock with one padlock, lock shackle diameter up to 11mm.