PF-06 Utility All-Purpose Boot

Advantages:

This unit will fit onto almost any wheel including tractors.
Hub cap removal not necessary, Installs in seconds, snug cranked on fit.
Same security as other steel boots, but great lower price!
No exposed padlock to attack
Many units keyed alike and/or extra keys available.

Detailed Specs:

For tire width 155mm to 300mm.
Protective rubber cushions at the jaw and a plastic rim protector.
Disc-type lock included, with two keys, Installation tool included.
Screw snugly onto wheel, remove tool, then use your key to shut the access
Confirmed fit on small sub-compact cars to full-sized highway tractors.

Current users:

Cities, Universities, Parking authorities
Condo associations, private owners
Private contractors
Tough enough for serious equipment anti-theft