Founded in 2003 in Guangdong Province, Zhongshan ADV Sporting Goods Co., Ltd is a professional fitness equipments manufacturers, one of the specialties are treadmill rollers. There are many reasons that our Rollers has been dominating both domestic and foreign markets, the excellent retention, minimum noise, light weight and the long life span are only a few of them. But why take our word for it? If you ask around, you will see that we are almost always the top requested suppliers by many established and famed treadmill companies.Our roller OD ranges from 34mm to 128mm, length from 210mm to 900mm. Based on customer`s requirements, ADV produces various levels of rollers to meet all needs. Surface treatment includes blackening, ED painting, zinc coating etc that all are RoHS compliant.Always looking ahead, ADV has been the industry leader in research and development for years. With the fully support from the management, our R&D team, also one of the biggest reasons that our company always get our customers home happy, is constantly coming up and creating brilliant ideas thus widening the gap between the company and our competitors. No matter what you need, our team is there to create it for you right down to the smallest detail. After all, our motto is "quality beyond what you expected" So why look anywhere else? We are your best choice!