Premium Qualitypony beads are 6*9mm in size with 4mm holes.These rainbow color Kandi beads are made of high quality acrylic plastic. Comes with 3 rolls of upgraded braided stretch cord, with adequate stretch and not easy to break compared to ordinary crystal cord . They are non-toxic, durable, uniformly shaped, lightweight, and colorfast, so you can wear them comfortably and confidently even at the beach or poolside!