These are the most widely used roller fishing rod tips in the world, with universal applications for all types and standard sizes of saltwater trolling and deep water rods, modified rollers, they are virtually foulproof, and feature AFLON™ bearings for superior performance and lasting lubrication. Designed to match up with both our Heavy Duty and Regular roller guide sets,they are available in both large head (L) and small head (S) versions in many sizes. The "L" models offer extra knot clearance,as with the 112L,114L and 116L,our most popular models for stand-up style tuna rods.