Yellow Mountain Imports Vintage Style Wooden Abacus - 13.9 Inches (35.3 Centimeters) - Professional 17 Column Soroban Calculator with Reset Button - Made

The Yellow Mountain Imports Vintage Style Wooden Abacus is a 13.9-inch long, 17 column Soroban calculator with a reset button. The beads are made of wood and are easy to maneuver, staying in place thanks to the rubber feet which keep the abacus secure. A guide is not included, however buyers have recommended finding materials online such as tutorials on YouTube or "Learn to do Math with Soroban, a Japanese abacus" by SAI Speed Math Academy. Reviews show a high degree of satisfaction, with users reporting the abacus as a helpful tool in combination with Pual Green's book for those with larger hands, allowing for more accurate and efficient calculations. Some have even suggested the abacus as an alternative teaching tool for children against video games and advise practicing as if it were a game in order to maximize its benefits. The abacus is a well-Constructed tool at a reasonable price, although some noted minor quality issues such as occasional splintering, chipped beads, and a lack of space for bead movement.