ColorfylCoco Compact One-Touch Abacus, 17 Digits, 4 Beads, Portable, for Arithmetic Calculations, School, Classroom, Office, Beginner's Guide

[For beginners to advanced users] This 4-bead, 7-digit one-touch abacus is compact and easy to carry. It can perform calculations up to approximately 14 digits (approximately 1 trillion places), making it perfect for simple calculations. [Compact 17-digit size] With fewer digits than the standard 23-digit size, it's lightweight, compact, and easy to carry. Perfect for simple calculations. It's also perfect for beginners and those using an abacus for the first time. [Cancel calculations in an instant] Calculations can be quickly canceled with the flip of a switch, dramatically increasing the speed of your abacus calculations. Its compact design means it can be quickly removed and used for quick calculations, making it a great choice for everyday use. Bead Material: Plastic; Dimensions: Width 25.6cm x Height 6.8cm x Thickness 1.7cm; Weight: 134g Set Contents: 17-digit one-touch abacus, 4 anti-slip stickers.