The Revomaze is the best purchase I have made in a long time. They are fun, frustrating and rewarding to open. Buy one you will not regret it.
They provide a LOT of entertainment and are fun to repeat or share with friends. Lots of value– I keep going back to these.
Really amazing puzzle that has something for everyone. They look beautiful and the machining, especially the maze on the core, is highly detailed. The mechanism is simple, robust, and effective.