Select modules above and add them to your cart. Then use discount codes: 12plus for 12 or more kits 6plus for 6 or more kits Some modules require props (as noted). Some modules require bathroom scales - one scale for every 2 participants. If you plan to train up to 8 people at a time, you'll need 4 scales. The scales are an incredibly powerful part of the learning experience - participants can measure how much stronger they are when using the ergo work strategy, or simulate a specific pushing effort. (Analog scales work much better for most of the activities than digital scales.) SEE ALSO: Universal Our library is updated frequently - check back often for new offerings! And let us know if you have a request.