13-grade wooden 7-bead synthesizer 2 on the abacus 5 abacus student abacus small 7 beads

Abacus name: 13-gauge 7-bead composite abacus, 2-upper 5-lower bead abacus, and small wooden 7-bead abacus.

Abacus size: length 28.2cm, width 11.5cm, height 2.2cm

single-beam abacusWeight: 0.41kg

Calculator packaging quantity: 60 pieces per box

Abacus Material Details: Wooden frame, synthetic beads, bamboo rods for stringing beads, corner protection, and a layer of clear varnish on the frame.