Sold as a Single 2 inch Dual Adjustable Lock Monster Buckle. Made for standard two inch wide webbing. Side release buckles are commonly found on outdoor gear and accessories. Both the male and female sides of the buckle have an adjustable ladder-loc. A 2 inch tri-glide is NOT needed! The best use of this buckle is for the replacement of a broken buckle on your equipment, or for custom work. CAUTION: This type of buckle may not mate properly with some other buckles. Sold as a complete buckle set with male and female parts to be used together. Sold as a SINGLE buckle.