Carlson�s Cremator Choke Tube features Triple Shot Technology (TST) and is available in close, mid-range, and long-range constrictions. The Cremator choke features three studded rings that gradually restrict the shot column for increased pattern density at longer ranges. This design also reduces shot deformation and flyer pellets. The Cremator Choke is designed to be used with all shot types and speeds, no matter the constriction. The extended tube offers a 25 percent increase in the parallel section which translates to tighter patterns and even pellet distribution. It�s made of stainless steel with a durable black oxide coating.