Sands Alive! Merrilee Mermaid & Friends set includes 2 pounds of Sands Alive!, 4 sealife molds, 5 mini castle topper molds, 2 extruders, seashell and smooth rollers with interchangeable handle. To add even more play value, the package opens up and turns into its own Mermaid World, complete with reusable stickers to create your own background art. All the fun of sand without the mess! The unique, non-toxic formula prevents bacterial growth.