3 Sizes Available: package includes 100pcs 4-hole sewing buttons in 3 different sizes-10mm(1mm hole, 60pcs), 15mm(1.6mm hole, 20pcs), 20mm(1.8mm hole, 20pcs). Various sizes can bring more layers to your crafts and avoid monotony. Sufficient quality is also enough for your daily use. Natural Shell Buttons: these sewing buttons are made of natural seashells, with the texture and gloss of natural seashells, overall grey, each is unique. Elegant and stylish, suitable for both men and women. Durable & Long-lasting: each sewing button is well made, lightweight and easy to clean, won't break or fade easily. They can even stay in good condition in the washing machine. Durable and sturdy enough to be used for a long time. Ideal Gift: the shell button are stylish and special design, perfect for gift giving. Can be also used as your unique gift and give it to your family and friends. You can develop your creativity and imagination as well as get a sense of achievement. Sewing Buttons: the plastic buttons are ideal for a variety of sewing, embroidery and knitting; usually applied in clothing, coats, shirts, dress, skirts, blouses, jeans, headbands, hats, gloves, scarves, sweaters, etc.