Puzzle "crystals" consists of:
- 5 crystals of different colors. The crystals are made of special ultra-durable epoxy resin. 
- 5 plastic decorated bases with lighting effects. Please note that the lighting effects match the color of the crystals. 
Players need to install all 5 crystals in the correct places, as a result of which an external magnetic lock will open. 
The crystal positions are unique because RFID technology is used. 
The puzzle also has built-in sound effects. 
The kit also includes 2 spare sets of RFID tags.
Crystal height 8cm, diameter 4cm 
Base height 5cm, diameter 11cm