Wooden Frame Abacus, 3 U-Shaped Steel Wires

This abacus features a wooden frame with three U-shaped steel wires, each holding 20 plastic beads. The abacus measures 13" tall, 4" long, and 6" wide, providing a hands-on tool for developing early number skills and basic arithmetic. The abacus is among the earliest calculating devices ever used and remains an effective educational tool for childhood mathematics instruction, making counting and number concepts tangible and engaging for young students.