Max. casting
The maximum weight of the entire rig (including bait, weights, hooks, etc.) that the rod can handle. This parameter is not recommended to be exceeded: the structure will be subjected to off-design loads and wear out a lot, to the point that the rod can simply break during a normal cast. In addition, the off-design weight of the casting significantly reduces the range and accuracy of the cast, which is critical, in particular, in spinning and match fishing (see "Rod type").
Min. casting
The minimum weight of equipment (lures, sinkers, hooks, floats, etc.) with which the rod will work effectively. Compliance with this parameter is important, first of all, for types of fishing that require high accuracy, for example, match or spinning (for more details, see "Rod Type") — a rig that is too light will not allow you to cast the rod far enough and accurately.
Working length
The length of the rod in the unfolded (working) position. For different types of fishing, different lengths are considered optimal; see "Rod Type" for more on this. If the type of rod you need has numerous length variations, when choosing, you should take into account the conditions in which you have to fish. On the one hand, longer models usually have a greater casting distance (this is especially true for float fishing); on the other hand, for limited conditions (for example, with dense vegetation on the shore or when fishing from a boat), it may make sense to take a shorter rod.