The Birchwood Casey Choke Tube Lube Grease is a small, 0.75oz universal gun lubricant specifically designed for choke tubes. Made by Birchwood Casey and distributed by Big Rock Sports, this lubricant is perfect for keeping your gun in top condition. The 21g size makes it convenient to use and store, while the gun lubrication properties ensure smooth operation. This product is a must-have for any gun enthusiast looking to maintain their firearm's performance.