The Oregon 564443 is a genuine Oregon twin pack containing two 91VXL056E chainsaw chains. These high-performance, low-vibration, low-kickback chains feature a 3/8-inch low profile pitch and a 0.050-inch (1.3 mm) gauge, with 56 drive links. Designed for optimal performance and durability, the longer cutter top plate ensures extended cutting life and less frequent sharpening. The LubriTec™ oiling system maintains lubrication for the chain and guide bar, reducing friction and extending lifespan. This chain set is suitable for chainsaws requiring these specifications, typically paired with a 16-inch (40 cm) guide bar.