Hemline Kam Plastic Snaps: Non-rust, washable, colour-fast, lightweight, strong and easy to use snap fasteners which are available in 4 glossy colours. Size 20 (T5) is best for medium to heavier weight fabrics. Perfect for baby bibs, diapers, children's clothing and accessories. Also good for soft furnishings such as cushions, quilt covers, craft and bags. Snap pliers H442 are required for application.