BRASS ZIPPER: one zipper with brass teeth and removable ends. The heavy duty black zipper for sewing is lead free, washable and tumble dry. They work great as heavy duty metal zippers for heavy jackets, metal coats and dress zippers. 31" METAL ZIPPER FOR SEWING:For tailors and seamstresses, these heavy duty metal zippers are necessary sewing accessories for jackets, winter coats, hoodies, smocks, leather caps, leggings, jeans, sweatshirts, vests, skirts, dresses and parkas. 31 DIY ZIPPERS The metal separating zipper is perfect for bags, purses, decoration, luggage and pillows. Compared with other metal replacement zippers, our open zippers are shrink resistant, colorfast and made of thicker material. Easy to install plain zip 31: easy to sew by hand or machine and suitable for both indoor and outdoor use. The metal spiral zipper is ideal for men's and women's clothing and easily matches canvas, fabric, suede, denim, leather and plastic. LEFT HAND Y-TETH ZIPPER 31 INCH ZIPPERS The 31 separator zipper has 1.5" wide, 32" long and 0.8mm thick zipper tape and zipper, 1" metal slider and 0.16" thick and 10mm wide metal zippers. The size 10 black and silver zip can also be cut shorter.