A set of colorful Masterkidz cogs and gears gives kids easy access to real, working engineering components. Each gear contains a central bearing that will continue to rotate smoothly when attached. The rounded tooth ends allow you to easily connect the wheels in a straight line or even at a 90-degree angle to each other. The variety of wheel sizes allows children to understand the principles of gears, and the toothed chain allows the transmission of rotational force. STEM board compatible kit Characteristics: - Rounded tooth ends make it easy to connect the wheels in line or at a 90° angle - Wheels in different sizes allow you to understand the gear ratios - Designed for mounting on Masterkidz STEM Scientific and Creative Boards - Special Masterkidz screws or pins are used to fasten the components (not included) - Gears and mechanisms fascinate children - they rotate, interlock and act as one organism, which gives a lot of satisfaction and fun - High quality workmanship ensures durability and safety of play The set includes: - 2 gears with a crank - 12 large gears with 12 teeth - 24 colorful cogs with 6 teeth - Chain with adjustable length The toy develops: - Motor skills - Creativity - Manual skills - Logical thinking Set compatible with: - STEM ME29584 ME29591 workshops - STEM wall boards ME12838 ME10971 ME11343 ME15358 ME15372 ME15389 ME15365 ME25111 ME25166 - Boards freestanding STEM ME29348 ME09548 ME09531 ME2932 - STEM walls ME30849 - Ready-made STEM kits MK0005 MK0006 MK0008 MK0009 MK0010 ME20925 ME25319-1 ME25319-2