10Pcs Silver Metal Bra Strap Hooks for Sewing Bikini Halter Tops Bathing Suit Clips Clasp Swimsuit Adjustment Slides for Lingerie Slip Dress Camisole, 20mm These undergarment sewing fasteners are suitable for a variety of sling joints, whether you assembly your own swimsuits or underwear, they work as the under band fastener and decoration, slide can be regarded as an adjustable function to the shoulder strap, perfect for aligning, concealing, retaining and making straps shorter too and much more uses.