Model Number: LD-N140 Brand Name: ORO Key Specifications/Special Features: Nylon zippersare made of polyester coil and are thus also termed polyester zippersNylon was formerly used and though only polyester is used now, the type is still also termed a coil zipper Zipper type: Closed ended/auto lock Materials: Nylon Size Available: #3, 5, 7, 8, 10 Tape Color: Customized Applications: Bags and garments etc.