About GKK

GKK Sports Lab is a baseball equipment brand powered by Zhejiang Zhengjia Technology, a manufacturing company specializing in baseball bats, baseballs, gloves and training equipment.

With factory-direct manufacturing capabilities, we support teams, schools, clubs, training facilities and distributors with reliable supply solutions, OEM/ODM services and flexible customization options.

From product development and quality control to customized packaging and bulk production, GKK helps partners build baseball equipment solutions for their markets.

 

Factory Direct Manufacturing

Backed by Zhejiang Zhengjia Technology, GKK provides direct manufacturing support from product development to bulk production.

Our capabilities include baseball bat manufacturing, baseball supply, quality inspection and customized packaging solutions for global partners.

OEM & Custom Solutions

We support custom logos, colors, packaging and private label projects for teams, brands, schools and sports organizations.

Our flexible customization services help customers develop products that match their market needs.

Why Choose GKK

Factory Direct Supply

Work directly with our manufacturing team for stable quality control, efficient communication and reliable bulk production support.

OEM/ODM Capability

From product development to mass production, we help customers create baseball equipment solutions with flexible customization options.

Long-Term Partnership

We support distributors, teams, schools and sports organizations with dependable supply and customized solutions.