What size rubber bands work best?

If you're using a regular 4.5x3/8" wooden craft stick, then the best rubber bands are 3.5x1/8" (size #33) rubber bands. Two rubber bands usually works best!

How many propeller are in one pack? And how many pack is being given here in this order?

There are 10 propellers in a pack. If you order one of this item, you'll receive one pack.

What kinds of plastic is this made from?

I am not positive but these worked great for our classroom to make propeller cars. Much more sturdy than the propellers we used previously.

Plastic Propellers 10 Pack 6 In Propellers For Stem Projects

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🚀 Propel Your STEM Projects Into Flight and Fame!

ADJUSTABLE POWER OUTPUT - Customize your flight with single or double rubber bands for slow, steady lift or a powerful burst of speed.
CONSISTENT FORWARD THRUST - Built-in shaft with a one-way hook ensures your projects always move forward with precision.
ENGINEERED FOR STEM SUCCESS - Perfectly designed for rubber band-powered planes, helicopters, and cars to ignite creativity and learning.
SECURE VERSATILE MOUNTING - Fits snugly on standard craft sticks and balsa wood up to 0.135 x 0.35 inches for reliable builds every time.
DURABILITY MEETS FLEXIBILITY - Semi-flexible plastic blades and a steel shaft resist impact and bending, built to withstand classroom challenges.

This 10-pack of 6-inch plastic propellers by STEM Inventions is crafted for rubber band-powered STEM projects, offering secure mounting on craft sticks and directional thrust control. Durable plastic blades paired with a steel shaft provide resilience, while adjustable rubber band tension lets users tailor performance. Ideal for educational builds, these propellers combine precision engineering with lasting durability to elevate your model airplanes, helicopters, and cars.

Specifications

ASIN	B06X3Q8C24
Age Range Description	Kid
Best Sellers Rank	#141,159 in Toys & Games ( See Top 100 in Toys & Games ) #176 in RC Vehicle Propellers
Brand Name	STEM Inventions
Customer Reviews	4.2 4.2 out of 5 stars (170)
Educational Objective	STEM
Item Dimensions	7.01 x 2.99 x 0.98 inches
Item Weight	4.54 g
Manufacturer	STEM Inventions
Manufacturer Maximum Age (MONTHS)	120
Manufacturer Part Number	43234-1307
Material Type	Plastic
Model Number	43234-1307
Number of Items	10
Set Name	1 set
Size	Small
Theme	Vehicle
UPC	631912022363
Unit Count	10 Count

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Plastic Propellers, 10-Pack - 6 in. Propellers for STEM Projects

Description

Specifications

Common Questions