Specification …two way open-end… …Open-end… …Close-end… Type DRAW THE HEAD ---PLASTIC STEEL ---NYLON SERIES ---METALS SERIES SLIDE FASTENER ---PLASTIC STEEL ---NYLON SERIES ---METALS SERIES PULL SN …3#… …4#… …5#… …8#… apply to Trousers Children Suits T-shirts Knitting Clothing Woman Clothing Casual Wears Sportswear Wind Wear Shoe Cotton Wear Skiwear Wind Coat Cotton Wear Knitted Sweater