These are bright and colorful tough acrylic glitter beads that come in assorted sizes, shapes and colors and are a wonderful addition to any bird toy. These are available in packets of 25 beads. Each individual bead varies in size from 1/4” in diameter up to 1/2” diameter with the stringing holes ranging from 1/8” to ¼” in diameter. Mix and match them with other toy parts and your bird will have hours of fun with their new toy.