For Browning Invector Plus; Winchester Super X2 / X3 / Supreme; Sako / Tikka. Quickly adjust for long-range passing shots or close-range decoy shots Simple "Twist and Click" design Easy adjustment without removing the choke Carry only one choke in the field CNC-machined construction For use with dove and field loads (#6-#8) Includes installation tool (spanner wrench) WARNING: Do not use this choke with buckshot, slugs, turkey loads, tungsten, or steel shot.