Hermit Crab Shells:Hermit crabs choose the conch shell according to their size and skin color at different times. Therefore, it is significnat to prepare various seashells for your hermit crab Natural Safe Shells：Hermit crab shells come from natural sea shells which is hand-polished,the surface is smooth,each one is the most natural color,totally safe Various Usage Scenarios: Can be used not only for marine aquarium but also for various crafts or decorations, large shells for decoration Home Decorations: Perfect accent for Make home decorations ,nautical decor, ornaments, floral and wreath arrangements and beach party decorations Large Spacious Hideout: The large space of this shell provides a cozy and warm environment for your Hermit crab, Geckos, Spiders or Lizards to hide, sleep and rest,giving your crab a sense of privacy and security