61 TOOTH = L x B =7.5 X 7 MM , 50 TOOTH = L X B = 5.5 X 7 MM, 36 TOOTH = 40 MM X 7MM, 26 TOOTH = 27MM X 7MM
Compatible with most STEM | STEAM | Maker | DIY projects and activities, and TeacherGeek building components (dowels, connector strips)▲ Works well with motors, turbines, pulleys, screws or on their own in gear trains
Works well with motors, turbines, pulleys, screws or on their own in gear trains
it a perfect choice for laboratories, science education, and DIY models.
COMBO OF Blue Gear Plastic Wheel in For DC Motor DIY Model Toys 61 TOOTH + 50 TOOTH + 36 TOOTH +26 TOOTH PAIR OF 4
