Aluminum PU Polyurethane Baseball Plastic Injection Ball Mold Maker Introduction of PU Stress Ball: These tennis balls are made of high-quality PU materials to reduce cracking. You can use our tennis balls to play on any court. They provide you with an incredible experience. Provide excellent training for friends or family or play tennis. Fun and creative to play or train tennis. Tennis training toys for friends or family. Our tennis will not lose pressure with the passage of time. Provide lasting and consistent performance. You can use our tennis balls to play on any court. We supply customize service, we can make mold for your according to your drawings or samples. So if you have any needs of mold to make pu flexible foam stress ball, please contact us!   FAQ: 1. Are you factory or trading company? We are professional factory in PU industry with more than 10 years experience, covering high pressure pouring machine,low pressure foaming machine, pu spraying foam machine,pu elastomer casting machine and production line. 2. Where is your factory ? Our Factory is located in Wuxi city, Jiangsu Province. 3. How can I get your factory? By air: You can take a plan to WUXI airport from China, if you fly from Korea ,Japan, USA, Singapore, Taiwan, Thailand you will can directly fly to us. By Train: You can stop at WUXI station, Not WUXI EAST station. 4. Do you provide pick-up service? Yes, of course. If you are in Wuxi airport or station, we can arrange a special car to pick you up directly to our factory. 5. If I need to develop a special PU raw material formula solution based on my product, can you provide it? Yes, we can. We have technical team of chemical engineers and process engineers, all of whom have more than 20 years of experience in PU industry. We can independently develop raw material soluation like polyurethane rigid foam, polyurethane flexible foam, polyurethane integral skin foam and polyurea to meet customer' s requirements.