This choke tube is the ideal accessory for your firearm. Compatible for Beretta and Benelli! Size of a choke is FULL (0.685) 90mm long The choke tube feature extended forcing cones for consistent, realible patterns. Our choke tubes are precisly engineered and crafted from high-quality materials to ensure long-lasting durabillity. Choke tubes are designed for enhanced range and performance. this choke tube is 12 gauge, 90mm long, size. Full (0.685) Color Bands for sizes. Grey-CYL Blue-IC Red-MOD Yellow-IM 1 choke tube Green-FULL