Caterpillar rainbow. Safe toy for children. Free shipping. The rainbow caterpillar is crocheted from cotton threads and without the use of buttons. This is done specifically for the safety of young children. This rainbow caterpillar was made where there is no smell of smoke and cigarettes. The crocheted caterpillar is filled with a safe and hypoallergenic material-sintepon. Caterpillar dimensions: length-15 in (38 cm).