The PREMIUM CARBON CLEANING RODS 17-.20 Cal 30" Length by Birchwood Casey are designed for firearms with calibers ranging from 17-.20 Cal. These cleaning rods are longer, measuring 56 inches in length, providing extended reach for thorough cleaning of barrels and chambers. Constructed from premium carbon, they offer durability and strength for effective maintenance of firearms. Features: Caliber Range: Designed for Rifles in 17-.20 Cal Length: Measures 30 inches, providing extended reach for thorough cleaning. Material: Constructed from premium carbon for durability and strength.