10 Pack Color: Black Made in the U.S.A. Mouth Dimensions: width: .397 Inch, height: .196 Inch Outside Dimensions: width: .531 Inch, height: .682 Inch Duraflex's 3/8 inch triglides are used for applications using 3/8 inch webbing or strapping. It is made of heavy duty plastic for strength and durability. Triglides are frequently seen as adjusters on back pack straps. They are used to lengthen or shorten the strap to which it is attached. ____Notes on Use: D-rings, buckle, triglides etc. are sized by the webbing or straps they are meant to be used with. These work with 3/8 Inch webbing or straps. Country Brook Design cannot be held responsible for misuse of our product. It is the responsibility of the purchaser to determine the suitability of the product for their use. These high quality 3/8 Inch triglides are used for numerous applications such as: (Harnesses) (Leashes) (Collars) (Backpacks) (Purse Straps)...and numerous other applications or uses.