UGears Combination Lock Wooden Kit Inspired by “The Da Vinci Code”. We dived into the world of conspirology, secrets and cryptography while designing our new intriguing Cryptex model. The Combination Lock consists of two parts. It opens if you set the right 3-digit combination. You can hide the keys, small items and your own secrets inside. The Lock has a convenient \"eyelet\" to hang the lock on a bag. Try to create your own Da Vinci Code’s Cryptex with 1000 combinations of 3 digit code. Assemble UGEARS Lock and get the idea of modern combination lock principle. Size Model: 3.82 x 2.6 x 3.86 in (97 x 66 x 98 mm) Number of components: 34