36" Chaps Zipper YKK #10 Brass ~ Separating ~ 578 Medium Grey (1 Zipper) 36" Chaps Zipper YKK #10 Brass ~ Separating ~ 578 Medium Grey (1 Zipper) YKK extra heavy duty brass separating zipper. Made from the finest quality metal to ensure extra strength & reliability. Virtually indestructible. YKK Zipper