KINGOU Wooden Tetris Nine Color Magic Cube Puzzle Burr Puzzles Brain Teaser Intellectual Jigsaw Toy SIZE - 2.36 x 2.36 x 2.36 in (6 x 6 x 6 cm). Please confirm this is the suitable size before order this brain teaser toy. INSTRUCTION - There are 9 different color blocks, after rolling the dice, pick out the 2 blocks whose colors match the dices. Then reassemble other 7 blocks to a cube. No matter the 7 blocks is, it can always reassemble to a cube. DIFFICULTY RATE - Recommended for ages 6 & up, children should be used under adult supervision. I give the Difficulty Rated:  . MULTIPLE USE  This intelligence toy can not only exercise brain, also can easily be used as a decoration in a den, family room, living room, working table, office or waiting room. KINGOUs 100% Guarantee - we offer superb fun toys and excellent customer service and if you're not totally satisfied with your purchase; we also offer a risk-free, No-Questions-Asked, 100% Money-back Guarantee!