2 Size for Your Choice---50pcs a set, different size 9.5mm/0.37in and 11mm/0.43, sufficient for thinner sewing fabrics but not intended for use with thick or dense fabrics. 2 Size for Your Choice---50pcs a set, different size 9.5mm/0.37in and 11mm/0.43, sufficient for thinner sewing fabrics but not intended for use with thick or dense fabrics. Easy to Use---Each snap button contains 2 parts, the front part and the back part, very easy to install, and these 2 parts can buckle together which can work as fasteners for any sewing project. Excellent Material---The button is made of harmless,non-toxic and environmental friendly material. Professional and practical design with beautiful appearance,not easy to loose from cloth. Multi Purpose---Perfect for DIY manual sewing craft and repairing such as shirts, knitwear, baby rompers clothing, baby diapers, bibs, and other thin clothes.