This adorable little bunny rattle is handmade with 100% GOTS certified organic cotton and Oeko-Tex 100 certified nature colored cotton, ensuring that it is safe for your baby to play with. The filling material is made of new material hollow cotton, which is made of polypropylene fibers and ensures a soft and comfortable feel. The rattle inside adds a fun sound for your baby to enjoy and promotes their fine motor skills development. This cute and stimulating rattle has been safety tested for the Japan market.