Unlock the door to safe, eco-friendly teething for your baby with the My First Green Toys First Keys. Made in the USA from food-safe, 100% recycled plastic milk jugs that save energy and reduce greenhouse gas emissions, the four colorful pieces swing freely on the lightweight ring, allowing little ones to easily grasp, shake and explore different shapes, colors and textures. With rounded edges and no external coatings, this is one set of keys parents can feel good about handing over. No BPA, phthalates, or PVC and also meets FDA food contact standards. Dishwasher safe for easy cleaning. Packaged with recycled and recyclable materials and printed with soy inks. Recommended for ages 0 months and up. Dimensions: Each piece approximately 3-3.75"L; Ring: 3.25" diameter.