Our improved Lock Picking School in a Box now includes repinnable locks, allowing the user to change the pin combinations in them, to expand his skill, offering more versatility and difficulty in picking. Also included are 4 lock picks, 1 tension tool, 3 graduated tumbler locks, and the instructional book, "Easy Pickings". This “Progressive Learning System” is a proven method of learning to help the beginning locksmith develop all the skills needed to master pin-tumbler lock picking.