Nylon webbing Battery strap with rubberized stitch. Extra secure Box/X stitch around buckle. 

Solid single piece metal buckle. ( Not a welded D-Ring) Takes a beating from a Hammer and still doesn't break. 

Dimensions: 16x220mm in size.  Perfect for 4s 5" packs

Weight: 7 Grams

Contains: 1x Pro Battery Strap