What are these black rubber rings on my new icefishing rod's tag

Piscifun ICE Focus Ice Fishing Rod, Titanium Spring

Bass : r/Fishing

Halibut : r/Fishing

Barra : r/Fishing

How To Size Custom Winding Checks

catfish : r/Fishing

oops : r/Fishing

How to Install Reel Bands on Custom Ice Fishing Rods

Century The Weapon Jr Spinning Rods

Engineered to withstand the rigors of angler and the unmatched fight of the fish. Designed from protective rear bumper to tip top as a superior Salmon and Steelhead tool. Designed, then handcrafted, for a lifetime of memories.

St. Croix Onchor Salmon and Steelhead Trolling Rod - ONCC106HM2

* Each O ring is 5mm outside diameter and 2mm thickness. * Suitable for 2mm diameter fishing rod, is easy to install. * Easy and convenient to protect

Rubber Fishing Rod Stopper O Rings 2mm Inside Diameter 1000pcs Black

UC4601C project : r/Fishing

Halibut : r/Fishing