Rubber Band Spinners

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These rubber band spinners are used for collecting various items in an FTC game. They work the best with very thick rubber bands, preferably of square or round cross section. These cords work especially well if you can tie off the ends. https://www.mcmaster.com/1034t12The four different sizes of spinners in the collection are so that you can customize your spinner size more easily. The features on the top of the edges of the spinners are for optional zip ties to further secure the rubber bands onto the spinners. The troughs on the bottom of the spinners are for the rubber bands to rest into, and also be secured by the zip ties. This lowers the width of the spool slightly.This works best with Actobotics D Clamping Collars and quarter inch D shaft.