This classic wooden “calculator” is for years of play and learning! The solid hardwood frame holds 10 thick coated rods with 10 colorful beads on each – 100 beads in all. Hands-on way to learn numbers and math concepts and to explore. Handcrafted premium quality wood and child safe paints. Promotes counting and math skills at an early age. Develops color and pattern recognition. Hand-eye coordination and fine motor skills. "