ELAN sew-through button measuring 12 mm (1/2 in) in diameter, supplied on a retail card of 4. The 4-hole construction offers a secure attachment and balanced tension on woven and knit fabrics. A versatile replacement or clean finishing touch for shirts, cardigans and accessories. Attach by hand or with a machine button-sew program; consider a thread shank for thick layers and confirm placement before stitching.