The hand-crafted Kringelring features a pliable ring of rainbow colored, beechwood beads threaded on a sturdy elastic band. The smaller plastic rings are made of BPA-free plastic. With its vibrant colors and pleasant rattling sounds, children from around the world have come to love this heirloom quality clutching toy. Measuring 3.75" in diameter, the Kringelring is safe for teething and has been tested to the highest EU and US safety standards. When applying colors, Haba uses multiple layers of water-based, solvent-free lacquers making the surface extremely resistant to wear and tear allowing the toy to be taken from the hand to the mouth.