1.Made up of millions fo tiny air pockets providing the tire with bounce and load handging characteristics 2.Similar to an air-filled tire, but never gong flat. 3.Excellent load capacity, light weight. Qingdao Runbell Co., Ltd. Tel: 86-532-86873761 Fax: 86-532-86873760 http://www.runbell.com Email: [email protected]