Check the listing for details. Engineered Labs Helium Element Cube. Condition: Used. Listed at 35.00 USD. The Engineered Labs Helium Element Cube is a collectible item that serves as a unique and visually striking piece for science enthusiasts and collectors. This cube-shaped device contains a sealed helium element, making it a rare and intriguing addition to any collection of science and medicine memorabilia. The sleek design and high-quality construction of the Helium Element Cube make it a standout piece for display or as a conversation starter in any setting.