Specifications: Through high temperature heat transfer process, clear and bright pattern, not easy to fade. Round and smooth edges without burrs, thanks to the fine grinding and polishing. Middle bearing, it can be freely rotated. Appropriate size, perfect for children's little hands. With the puzzle cube, children can practice addition, subtraction, multiplication and division. Helps to train children's arithmetic operation, color recognition and hand-eye coordination. Item Name: Puzzle Cube Material: Wood Feature: Non-toxic, Safe, Bright Color, Parent-child Interaction Size: 9.2cm x 5.5cm x 5.5cm/3.62" x 2.17" x 2.17" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Puzzle Cube