Safariland Duty Gear MK4 Black Hidden Snap OC Pepper Spray Holder (Plain Black Hidden Snap) Dimensions: 1.5"(38mm) (diameter) x 5.5"-6.5"(13.9cm-16.51cm) (high). Fits Guardian 4 oz., Defense Technology, Freeze 4 oz. Part of the 6004/6005 Tactical System Constructed from SafariLaminate a unique thermal laminate