The 3D printed sea urchin hats are a great way to add some personality to your saltwater marine aquarium and can help to create a more interesting and visually appealing environment for your sea urchin.
Hats are made of reef safe PETG filament. Won't break down in a marine environment.
Hats include: Top hat (1 white & 1 black), Viking hat, Baseball hat, Waldo hat, Wizard hat and a cat hat.