GoodyearA(R) Heavy Duty Tubes are 30% thicker than standard tubes, providing more puncture resistance. Included: (2) Tubes (2) Tire Levers Size: 26" x 1.90"-2.30" Valve: Schrader About The Goodyear Tire & Rubber Company Goodyear is one of the world&';s largest tire companies. It employs about 68,000 people and manufactures its products in 53 facilities in 20 countries around the world. Its two Innovation Centers in Akron, Ohio, and Colmar-Berg, Luxembourg, strive to develop state-of-the-art products and services that set the technology and performance standard for the industry. For more information about Goodyear and its products, go to www.goodyear.com/corporate.