This mathematically challenging puzzle from Neato! is a best-selling STEM introductory toy thats hours of fun and cognitively beneficial. Small enough to fit in small hands and bag pockets for travel-sized puzzle time. Puzzles feature white and red squares with black numbers and 1 plastic barrier piece. Slide the numbers into sequence by lining them up either vertically or horizontally until all 15 numbers are in order. Can help improve hand-eye coordination, critical thinking skills, logic skills and memory recall, and more. Blue and red display case holds 24 puzzles for easy showcasing and selling.

• Age Grade: 5
• Product Dimensions/Weight: 3.00 L x 0.25 W x 5.50 H / 0.06 lb
• Inner Pack Dimensions/Weight: 7.50 L x 5.25 W x 7.00 H / 0.82 lb
• Made In: China
• Batteries not required