Description Jeil Abacus 11-Row (Color) — Learn soban (abacus arithmetic) with the best abacus available! With top-tier quality and design, this abacus makes it easier and more accurate to study abacus arithmetic. Product Features - The 11-row abacus most widely used in academies - Beads in six vibrant colors: red, green, orange, yellow, white, and blue - Two-tone (white and black) center divider bar - Larger beads with rounded edges for comfortable handling - Rounded top, bottom, left, and right edges on the frame - Matte finish on the frame, rods, and beads - Dimensions: 23 cm (W) x 6.5 cm (H) x 1.5 cm (D) Product Benefits - Repeating color pattern every 6 columns makes it easy to recognize place values - Colorful beads spark children's curiosity - Two-tone divider bar and color contrast between the divider and rods make it easy to distinguish upper and lower beads - Rounded edges and matte finish give the abacus an elegant, premium look - Rounded, well-finished beads and frame increase safety and ease of use - Thicker frame and specially designed rods increase durability