Brand new set of Caber 49mm piston rings. Fits Stihl chainsaw model MS391. These are a special size that only fits MS391, does not fit other saw models that use 49mm rings. 

Caber rings meet or exceed OEM quality. Made in Italy.

Includes 2 piston rings.

Wolf Creek Saw Shop is a proud U.S. seller, we ship within 1 day of receiving payment, and you will get your parts quickly!