The seashells are great assortment, environmentally friendly and healthy, without any harmful substances, which can make animals quickly adapt to the environment. There is a nice variety of sizes and colors, and overall sturdiness is great!Feature: Color: 6 Different Shells Size: 2-3 Inch Package: 1 Storage Container + 6PCS Big Shells +2 plastic plants Note: -The new shell should be sterilized in boiling water for 5 minutes, then cooled, and then placed in a crab. -Do not use painted or glazed shells for pets as they are dangerous and potentially toxic to hermits.