The Faithfull PVC Coated Brass Padlock has a brass body with a weatherproof PVC coating. The shackle is made from hardened steel.
  The padlock has an 8 disc tumbler lock mechanism and is double locking. 
  This padlock is key retaining, meaning the key can only be removed when in the locked position.
  Supplied complete with 3 keys. More than 10,000 key differs.
  Specifications:
Size: 50mm.
Internal Width: 21.5mm.
Internal Height: 21.5mm.
Shackle Diameter: 8.8mm.
Security Level: 7.