6pcs piston ring set with 44mm inner diameter and 1.5mm thickness designed to fit chainsaw models including 353, 350, and 346XP.Compatible with engines such as KAAZ TH48, TD48, TJ53E, KB, and KBL53.Each piston ring is manufactured to maintain dimensional accuracy and material for engine performance.Designed for straightforward replacement and consistent.The package includes 6 piston rings.Suitable for use in various small engine applications where these specifications are required.Important: This product is an aftermarket alternative.Brand names mentioned serve only to show which devices it fits.