These adult and adolescent models are made of durable vinyl plastic with rust-resistant stainless steel skeletons and articulated joints. When filled with water, manikin will submerge to the neck. Add additional 5-10 pounds of weight to sink (weights not supplied; a brick will do)Adolescent Water Rescue Manikin. Size: 49" x 16" x 9". Ship weight 24 lbs.