Quality Material: Durable Material, Eco- friendly high quality non-poisonous ABS plastic and hard wearing PVC stickers that will not peel off or fade easily.
Durable Design: Improved anti-pop technology and structure for extremely fast and excellent cornering. Tension adjustable, loosen or tighten the cube with screwdriver, to find the most comfortable feel in your hand.
Variation: The Windmill Cube is a variation of the classic 3x3 shape mod . This puzzle is based on a speed cube design, meaning that it has an adjustable core and can perform some small corner cuts.
Gift Idea: Perfect 3-D puzzles gift for boys, girls, kids, teens and adults. Exercise your brain, improve your memory, practice your hand-on skills with speedcubing. No one falls out of love with these cubes. Ideal brain teasers gift for Birthday.