Briley 3 Choke Holder Extended Case For Helix Case and Invector DS Chokes. The X-Choke system secures the choke tubes to the extended case is easily removed by unscrewing the center shaft to the vertical position. The Briley 3 Choke Holder Extended Case includes a set of socked wrenches hex key and instant film tool as well as the actual choke tube in most cases. These features make the Briley 3 Choke Holder Extended Case an indispensable tool for the shooting range. Specifications for Briley 3 Choke Holder Extended Case: Manufacturer: Briley Color: Gray/Black Quantity: 1 Package Contents: Briley 3 Choke Holder Extended Case Briley 3CHSL: 3 Choke Holder Extended Case For Helix Case and Invector DS Chokes