Now you can buy the highest quality round plastic beads in best prices. We promise a lightweight and economical answer to your DIY and jewelry projects. These striking plastic beads will not only add color to your art projects but also a very economical value to your pocket. Each bag of round plastic beads consists of 2 cups (approximately 528) pieces of high quality 10 mm diameter shiny plastic beads. These beads are multipurpose since they are available in loose form.