This inflator features a convenient 2-in-1 design, allowing it to easily convert from an inflator to a deflator tool in seconds. It comes with three tethered inflation adapters, each designed for different nozzle sizes: 0.17 inches, 0.19 inches, and 0.5 inches. The price drops from $39.99 to $13.99. Shipping is free for Amazon Prime members. Otherwise, it adds $6.