They are your dou dou rubber I come from the Gommu family. I am made with the white lymph of the Hevea tree and are 100%biodegradable. I am sustainable, born from a green production process. I am hand -painted with organic food paint and are free of PVC and BPA. I am also soft and chewable and I carry with me a square of soft colorful cotton with which to pamper you at the moment of bedtime I am sure because I am hermetically closed and inside me you cannot accumulate molds or bacteria. What I like most about being a gommu is that I can help you in your emotional, sensory and cognitive development. My soft surface and the rounded and soft shape will stimulate your sense of touch and become best friends. Measurements: 35cm x 35cm Composition: Hevea + cotton rubber Please follow the instructions for the treatment below to ensure the maximum possible duration of the product: do not expose excessively to the sun. Do not expose at high temperatures. Do not wash with abrasive