Baby Rattle & Teething Ring Sterling Silver, Child Riding Duck. The teething ring is made of hard white plastic. The Rattle has no makers mark. The rattle has had a acid test and tested for Sterling Silver. The Rattle/Teething ring measures approximately 4 1/8"long from top of ring to bottom of rattle. The teething ring measures 1 15/16"diameter. The rattle measures 1 7/8"long by 7/8"wide by 2 1/2"height. The condition is very good, used, Pre-owned.