Hologram sequins have a glittery, sparkled multi reflective finish. Sequins are 10mm (3/8") with center hole for for sewing/ attaching to fabric. Size and pack specifications: Pack contains approx 400 sequins. Made in USA. These beautiful sequins are produced from high, quality, vibrant material for sparkle and shine. Perfect for clothing embellishing, ornaments, costumes, display and art projects.