Check the listing for details. Bear Golden Eagle Jennings Buckmaster W2 Single Cam Module W2 Archery Mod. Condition: New without tags. Listed at 32.00 USD. Thank you for stopping by!!!!!!! DESCRIPTION; Please check the ID number on the module that is on your bow now so you can get the right module. The W modules work on several manufacturers bows made by Bear , Fred Bear , Jennings , Buckmaster and Golden Eagle. There are 8 W type modules total , they will change the draw length in one inch increments , the longest module is the W1 size module and these will work in place of the RSH modules. These work on the single cam which has a different name by each bow builder mentioned. The string post on the cam will adjust the draw length on the bow +/- 1/2 inch. A bow press is needed to change the string post position. I will need the information listed below to recommend the correct module for the draw length you need. Included; One module that is marked W2 - If you would like me to recommend a module please email the bow model, year and maker, draw length now, the draw length you would like and your module ID number. The module might have to be removed to read the ID number *Thank you for your interest and questions are welcomed?????????