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Foot switch virtually eliminates fumes
This helps your students start to think like engineers
1x 10 pack of Green LEDs
For timed switching
PiCell Ni-MH Pre-charged Rechargeable Battery 1.2V AA 2600mAh - 4 Pack ST-SS Foot switch virtually eliminates fumesFeatures Low self discharge Easy to use Higher Performance Protects the environment Saves ongoing costs Rechargeable and reusable Very economical batteries that can be reused approximately 1,200 times. Low Self Discharge Usable immediately after purchasing through improvements made to the self discharge property. You can use recharged batteries at any time you want, even one year after purchase. Dimension (max): Diameter: 14. 5(mm) Height: 50. 5(mm)
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