These ducks are made of a very light weight wood.
Very close if not a type of driftwood. Each duck was carved then attached by chain to the other.
There is one taller duck about 3.5", and two smaller about 2.5" high. Chaining the larger animal to two smaller ones was once very common. Mainly the animals were poodles. The rhinestone eyes are blue on the adult and the smaller ones have red/and white eyes. This item was owned by me for many years. Great condition.