One-touch abacus, 23 digits, wooden, birch beads, ON100 (Tomoe Abacus)

With just a press of a button, you can reset the abacus reliably, enabling faster calculations.

Functionality has been significantly improved. The one-touch abacus is a Tomoe original.

Number of digits: 4 beads, 23 digits Material: Beads = Birch wood Size: Width 331 x Height 16 x Depth 70 mm Weight: 198g