Got this lock in the post about half an hour ago, bought from Ebay for £7!! I just had to get it lol Its a great little toy but as far as security goes its SH*T lol Body of the lock is aluminium I think and put together in two halfs, you can see the seem running all the way along it! the cylinder, pins, & springs are very poor!! and the lock was even bypassed using its own packaging!! LOL :0) A cool little thing to have and the kids loved playing with it lol DONT FORGET TO GET ALL YOUR LOCK PICKING TOOLS @ UKLOCKPICKERS.CO.UK WORLD WIDE CHEAP POSTAGE - GREAT QUALITY TOOLS AT GREAT PRICES