Features: This traditional wood abacus is especially for toddlers, students, teacher, accountants, clerks, or a great gift for abacus collectors. This portable abacus is designed with 7 Column; 9 Column; 11 Column; 13 Column; 15 Column; 17 Column. 5 Beads of each row. It consists of a sturdy abs frame, beads. Lightweight, and portable. The frame of the children abacus is finely polished and smooth surfaces without burrs, so you can use it comfortably This abacus is a good educational toy that increases the toddler and children practical ability and stimulates the activity of the brain cells, improving the childs intelligence level, which can also teach older students how to count and compute mentally. Use this math resources to improve your child's number bonds and advanced counting skills. Luxury vintage abacus with wood beads perfect for students, teens, minds learning, math lessons. Specifications:Color: BrownComponent: Wood; Plastic Type: 7 Column; 9 Column; 11 Column; 13 Column; 15 Column; 17 ColumnSize: Approx. 26.7x6.2x2in/10.51x2.44x0.79cmWeight: Approx. 200-300gNote:1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid.2.Due to difference between different monitors, the picture may not reflect the actual colorPackage Includes:1Piece Portable Abacus Specifications: This traditional wood abacus is especially for toddlers, students, teacher, accountants, clerks, or a great gift for abacus collectors.<br/> This portable abacus is designed with 7 Column; 9 Column; 11 Column; 13 Column; 15 Column; 17 Column. 5 Beads of each row. It consists of a sturdy abs frame, beads. Lightweight, and portable.<br/> The frame of the children abacus is finely polished and smooth surfaces without burrs, so you can use it comfortably<br/> This abacus is a good educational toy that increases the toddler and children practical ability and stimulates the activity of the brain cells, improving the childs intelligence level, which can also teach older students how to count and compute mentally.<br/> Use this math resources to improve your child's number bonds and advanced counting skills. Luxury vintage abacus with wood beads perfect for students, teens, minds learning, math lessons.<br/> Package Includes: 1Piece Portable Abacus note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!