What's within the container? Deco O / Deco O LED miniature aquarium ornamental stone stacking USB filtering featuring a simple-to-change cartridge Dual-port USB adapter (OP: 5VDC 1A) dirt color lens 1. Deco O / Deco O LED miniature aquarium 2. Ornamental stone stacking 3. USB filtering with a simple cartridge to replace 4- Two USB ports on a USB adapter (OP: 5VDC 1A) 5. Gravel, Lens in Color