Product Dimensions:28.5 x 12 x 2.5 cm; 449 Grams Educational Objective(s):Game and play Number of Game Players:2 Batteries Required?:No Batteries included?:No Material Type(s):synthetic material Material Composition:synthetic material Colour:Black Product This abacus is made of premium material, which has long- time life. great for rapid calculation. This abacus is suitable for adults and children. It can be used in any math abacus course. also an tool for children' s early math education. Features - Material: Wood - Color: Black/ Coffee - 28. 5x12cm ( 11. 2x4. 7inch ) Package Including 1 x abacus Directions keep clean About this item Material- Our wooden abacus is made of high class material, which has the long service life. Perfect- The vintage abacus ine workmanship ensures the practicality and durability. Convenient- Lightweight for daily carry and can be easily stored in your bags. Simple- The appearance design of the product is simple and elegant. Made Well- The product is exquisitely made and the color is not easy to peel off. See more product details Material- Our wooden abacus is made of high class material, which has the long service life. Perfect- The vintage abacus ine workmanship ensures the practicality and durability. Convenient- Lightweight for daily carry and can be easily stored in your bags. Simple- The appearance design of the product is simple and elegant. Made Well- The product is exquisitely made and the color is not easy to peel off.