5 Sizes of Natural Shell Buttons: contains 100 buttons in 5 diameter sizes 10mm 12.5mm 15mm 17mm 20mm(0.39~0.79inch) to meet the needs of different garments and crafts. Each size 20pcs staggered size buttons make your project more of an artistic charm High Quality Natural Material: the buttons are made of natural shell material with unique texture and color each button shows the beauty of nature. These buttons are durable and solid adding a touch of nature and elegance to your craft projects Double Hole Design: our seashell buttons are designed with double holes the holes are 1.6mm~2mm (0.06~0.08inch) in diameter suitable for sewing projects. The double holes make the buttons easy to attach to fabrics including DIY clothing jackets jeans and skirts Multifunctional Decorative Use: these sewing buttons are suitable for both daily wear clothing such as shirts jackets blazers and sweaters and can also be used for decorative crafts adding a nautical touch and decorative layering to your creative projects Ideal Crafting Accessory: this button set is ideal for crafting enthusiasts and professional tailors. They are great for all kinds of sewing jobs and can be used on garments jackets shirts blouses headwear hats gloves sweaters and other places