Rhodonite is a very popular stone, so these are listings that all match to help with making a jewelry ensemble. Rings are adjustable and nickel free. The locket is on a 28" chain. The bird, dragonfly and simple necklace are on an 18" chain. Necklace lengths can be changed just leave a note at checkout. It is not recommended to wear these while swimming or bathing although simple hand washing is fine.