Ukidz UGEARS STEM Curvimeter Model Kit - Creative Wooden Model Kits for Adults, Teens and Children - DIY Mechanical Science Kit for Self Assembly - Unique Educational and Engineering 3D Puzzles with AR App frog Size: Medium Set

Size: Medium Set

Our goal is the production of unique

and a hand-painted black and white finish

Item Number: A-901

Frame Material: Plastic

Ukidz UGEARS STEM Curvimeter Model Kit - Creative Wooden Model Kits for Adults, Teens and Children - DIY Mechanical Science Kit for Self Assembly - Unique Educational and Engineering 3D Puzzles with AR App frog Size: Medium SetSize: 4. 5 x 3. 3 x 6. 6 in Level: Easy Number of parts: 109 Assembly Time: 2 hours Recommended Age: 8+ Package size: 8. 1 x 7. 4 x 2. 5 in Item Number: UTG0073 Dimensions: 8. 0 x 8. 0 x 3. 0 inches Weight: 1. 0 lb The Curvimeter or opisometer is a device that measures the length of curved lines and helps to calculate the distance between the points on a map more precisely than a ruler or a compass. The mechanism has a measuring wheel, a clock face