Some of the KidWind kits include a wooden spool to do a weight lifter activity. While Vernier does not sell wooden spools as a separate item, they are included in the following items:
KidWind Basic Wind Experiment Kit (
KidWind Basic Wind Experiment Kit (
KidWind Advanced Wind Experiment Kit (
KidWind Advanced Wind Experiment Kit (
Drivetrain Set (
Advanced Wind Experiment Kit Nacelle (
If you find that you need extra spools, you will want to make sure the holes in the spools are 3/8 inch diameter.
We recommend looking for spools at craft stores such as Michaels or JoAnns. If you need to purchase online, we found these spools that will work:
http://www.craftparts.com/ item number SP9000