Night Lions Tech(TM) 3D Crystal Puzzle - Deluxe T-Rex Dinosaur Puzzle Educational Toy Building Blocks Set For Kids by X Toys 3D crystal puzzle - Deluxe T-Rex dinosaur puzzle educational toy building blocks set for kids Include 50 unique interlocking pieces and instruction Finish Size:18x10x12.5cm This crystal puzzle is made of Eco-material Enjoyable to work on, challenging to complete, and beautiful to display.After a spell, it can be placed in the family, office or other places