This kit is for use with 1, 2, 3 or 4 x US2000C and 1 or 2 x US3000C Pylon modules (up to 100A continuous charge discharge).
If you will use more than the above configurations of Pylon modules, please order a different kit.
The 25mm lugs require a crimping tool, and are used for the fuse holder and isolator connections, which are made on the positive Pylon battery cable.