The Original Stratus Support System is made of a comfortable belt unit holster & an adjustable neoprene wrap that fits around the stock of your shot gun or rifle (or flashlight, beverage, etc). Once the user slings the weapon, simply insert the knuckle located on the side of the wrap & guide into the belt unit. Once the knuckle is received, the weight of the weapon is transferred onto the belt, reducing upper body fatigue & provides better weapon control. The looser the sling on the upper body, the more weight that is delivered to the belt unit & vise versa. Can also be used without a sling. Built-in retention system keeps weapon secure but does not impede rapid deployment. Ambidextrous , lightweight design. Designed to fit most traditional stocks. May not fit stocks with high check rest. Lifetime Warranty All Stratus products are guaranteed against breakage or we replace it free of charge.