USB-business Technology Co., Ltd is a high-tech sports equipment factory for sales, R&D and production over 4years. It is located in shenzhen, Guangdong province, China. We specialized in the production of automatic tennis ball machines, racket stringing machine,shuttlecock shooters, tennis practicing devices and accessories for tennis and badminton.

All our products are tested and have CE, FCC and RoHS certificate.

The warranty is 12months to change new one and 3years free repairment after-sales.

"GLS" is out brand.We can print your logo,too.

Welcome to join us to improve market.

We have the advantages below: 1. Competitive price according to your quantity.

2. Strict quality control 3. Prompt response, good service before and after sales.

4. Prompt delievery