Description:

For 4 bladed propeller

• Affordable, lightweight, plastic and 4-bladed propeller.
• It can be connected to the furthest limit of a DC motor.
• Use it to move little vehicles, boats, a fan, or even a wind generator!
• Incredible for use pair with a solar powered cell or a battery pack.
• Viable with a wide assortment of science fair activities.

For 3 bladed propeller:

• Affordable, lightweight, plastic, 3-bladed propeller
• Attaches with ease to any DC motor with standard 2mm shaft
• Propels small cars, boats, fans, wind generators
• Great for science fair projects
• Measures 2.75″ x 2.75″ x 0.5″
• DC motor 3v to 12v high speed