This Abacus Sorobokan is a traditional Japanese calculator that is perfect for school or business use. Its 13 rods and beads make it a versatile tool for solving complex equations and displaying your work. Made of durable plastic, this calculator is built to last and withstand the rigors of daily use. The Abacus Sorobokan is perfect for anyone looking for a reliable and efficient way to solve math problems. Its unique design and history make it a great addition to any collection, whether you're a collector or a teacher. Made in China, this calculator is sure to meet all your math needs.