This wooden abacus is a great addition to any collection of educational toys and a unique way to teach basic math skills. With 11 columns and 77 beads, it's perfect for children and adults alike. The design is based on traditional Chinese abacuses and features a handy tray for easy storage. The year of production is 1995, adding to its vintage charm. Whether you're a collector or just looking for a fun way to practice addition and subtraction, this abacus is a must-have.