Axle Rods for Wheels (Pack of 100 Axles)

These axle rods are a perfect fit for our yellow and black wheels (PWHEELSBACK and PWHEELSFRONT). The axle rod is 76mm long and 3mm diameter (1/8 inch x 3 inches).

Four Blade Propellers with 56 mm diameter

Four blade plastic propeller with 2-mm hole and 56-mm diameter (about 2 1/4 inches) are used in blowers, fans, air propelled model boats and many other applications. They fit the 2-mm shaft of small DC motors. Used for models,hobbies, toys and...

Gear Set, Plastic gears (Set of 4)

This set contains four plastic gears for hobby, craft or science projects. Plastic gears can be used to show gear reduction in motorized equipment or adjust the direction of rotation. Many different products such as watches, clocks, and cars require...

Metal Coil Spring Slinky, 50mm

This metal slinky has a 50mm diameter and is commonly used to demonstrate waves in physics experiments as well as other useful properties. Understanding how such properties work is essential to engineers who must apply the theories and principles of...

Metal coil spring, slinky 75 mm

This metal slinky has a 75 mm diameter and is commonly used to demonstrate waves in physics experiments as well as other useful properties. Understanding how such properties work is essential to engineers who must apply the theories and principles of...

Motor with Gearbox

A unique gear box system constructed around a motor. The gear box is easily assembled and can create a range of gear ratios from 4:1 to 256:1. Simultaneous drives can be achieved from each end of the gear box – each with a different ratio if wanted...

Plastic Back Wheels (Pack of 100)

Plastic wheels for construction of model vehicles. Back wheels are 17mm wide and 40mm in diameter. The diameter increases to 42mm with traction band or 50mm with black ring tires which are both sold separately.

Plastic Front Wheels (Pack of 100)

Plastic wheels for construction of model vehicles. The front wheel is 5mm wide and 35mm in diameter.

Plastic Propeller, 4" span

Plastic propeller with 2-mm hole and 10 cm span (4 inches). Works with any miniature motor that has a 2-mm shaft. If you are looking for a 5" propeller please select the product code PROP5.  Propellers are used in making air propelled boats and...

Plastic Propeller, 5" span

Plastic propeller with 2-mm hole. Works with any miniature motor that has a 2-mm shaft. Available in 4" length (PROP4) and 5" length(PROP5).

Plastic Wheels, Plain Set

Plastic wheels and axles for construction of model vehicles. Back wheels are 17mm wide and 40mm in diameter. The diameter increases to 42mm with traction band or 50mm with black ring tires. The front wheel is 5mm wide and 35mm in diameter. The axle rod...

Plastic Wheels, Tires Set

Plastic wheels and axles for construction of model vehicles. Back wheels are 17mm wide and 40mm in diameter. The diameter increases to 42mm with traction band and 50mm with black ring tires. The front wheel is 5mm wide and 35mm in diameter. The axle rod...