Press fasteners · Knipper®   radial spring · Ring spring · S spring · FlexFix® Waterproof WetStop® systems Jeans products Special closure and fastening systems Eyelets, rivets, shoe accessories Fashionable accessories Automotive Attaching machines WorkWear	Press fasteners DUR ring spring system Fields of application • Standard quality for all customary clothing industry on fabrics,   textile laminates, leather and other materials • Suitable for light to heavy mechanical loading of the press   fastener system Attaching instructions • Manual, semi-automatic and fully automatic processing (attachment)   without pre-punching the material • Not suitable for knit goods Design options • A wide variety of design options for caps: galvanic or lacquered surfaces, caps with plastic top,   die-cast zinc caps, caps in fashionable design or with custom embossing Special features • Ring-type spring offers great protection against opening under lateral tension; particularly suitable   for high requirements in terms of closing force • Central riveting • Gentle on fabrics by using a twin prong cap • Also available as the waterproof WetStop® closure system (DUR 4) • Available in system sizes DUR 4, 5, 8, 9 • DUR 9 Lift the Spot: Special solution - closure can be opened in one direction only (safety closure) You will find detailed information in our brochure entitled "Press fastener systems - Selection and attaching instructions," which you can order here.