Let's Make Robots!
Price: $4.95 USD
Description: This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and … Read more
Price: $9 USD
Pack of 25 rack gears. Unfortunately it doesn't look like Rapid will ship outside of the UK and I really need some rack gears for the cap launcher. They allow a … Read more