No sub is gonna slouch on your watch: our Steel Collar With Posture Control will keep them upright. This thick hinged collar features a ball-tipped rising rod affixed to the front with an O-ring on a lock plate. The rising rod slides through its housing and is held in place by an adjustable tightening screw-knob, controlling the height and posture of the wearer. The hinge lock opens and closes with an allen key (included).

• Materials: Stainless steel
  
• Dimensions: Inside diameter 5.51 inches; collar is 1.57 inches wide x 0.39 inches thick
  
• Weight: 38.44 ounces (2.4 pounds)