Our acorn rattle is made from 100% organic cotton (Gots-Certificated) and organic maple wood. For the filling we use kapok fiber,an eco-friendly alternative to polyester fiber fill. The high quality of our materials makes our toys so special. The wooden ring is easy for the baby to hold, and inside is a bell, that makes a nice sound and stimulates the baby's senses. Handmade and sustainable, 100% natural, 100% organic. Our labels are printed on GOTS - certified biological cotton band with environment-friendly inks that also have the Oekotex-100 certificate, making it the best possible combination.