Find the 7.5mm Pastel AB Mix Plastic Flatback Shells, 200ct. by Bead Landing™ at Michaels. Bring a nice bit of shimmer and shine to your accessory, décor and craft projects with these flatback beads from Bead Landing. With a cute shell shape and iridescent aurora borealis finish, these beads are perfect for adding flair to costumes, home accents, collages and more!