These dogs would like to keep watch over your little wonder during sleep. The rest of the time, they are eager to show how well they can play ball. They hang by a delicate thread & will gently bounce & spin in the air at the slightest touch. The colors of the dogs are especially suitable for newborn babies, who prefer contrasting black & white images which help develop their vision. Past the first 3 months, babies will enjoy the bright colors of the balls. The materials to make the mobile are all organic. My reasons for using organic materials relate to the environment & the health of workers just as well as the safety of the user of the final creation. Hence I go organic even when I make decorative items. The dogs are made of organic wool felt (white/cream) & organic cotton fabric (black) & are filled with organic wool. The ring is made of natural cane & the twisted threads - of organic wool yarn. Materials sourced as follows: white felt: www.biostoffe.at black fabric: www. biostoffe.at wool fill: www.greenfibres.com wool thread: www.cornishorganicwool.co.uk Size of the ring: 23cm / 9inch in diameter. You can adjust the length yourself by untying the thread connections on the ring. Easy to hang: the mobile comes complete with 3m / 120inch extra twisted thread & self adhesive, rental safe ceiling hook - removable without a trace. Border Collie Baby Mobile, Dog Mobile Dogs, Nursery Border Collie, Black & White, Organic, Gender Neutral