Locking puzzles are puzzles that consist of multiple 3-dimensional pieces that interlock in a certain orientation to create a larger structure. This structure is the solved state of the puzzle, and cannot stay put without any individual piece. So, the stability of the structure is due to the interlocking of the pieces.
This collection houses some of the best complex as well as simple shapes that can be created by putting together the pieces in the right orientation. These puzzles serve as a test for patience and intricacy, while being perfect examples of brain teasers.
Cubelelo has a huge variety of locking puzzles, such as the 24-lock, ball in a cage, football, sphere, gem and nine links puzzles, among many others! They are also available in sets as a bundle.