Our chocks are low-profile so they fit under low nose fairings like the Cirrus and Cessna 182. Personalize your wheel chocks to match your plane’s N-number and colors. These chocks are made of ASA, a rugged outdoor plastic. They're designed to withstand the elements and last for years. They are also extremely strong and very lightweight. The rope is polypropylene and the ends are heated to prevent fraying. They’re also made right here in the USA.