We have a long-term client who primarily sells products on Amazon and has been collaborating with us to develop stress balls for several years. During this time, we have worked together to bring numerous innovative products to market. Every year, we strive to launch new and exciting variations of the classic stress ball to keep up with market trends and consumer demand.
For example, one of their recent projects was to transform the traditional monochrome stress ball into a glowing, color-changing ball. Although they were eager to explore this new product idea, they were unsure how different colors would complement each other and how the lighting effect would be reflected in the final product. They sought our expertise to address these challenges.
After understanding the complexity of the project, we initiated a comprehensive testing phase that lasted several months. We experimented with various color combinations and lighting effects to determine the most appealing and effective design. In the process, we discovered that filling a transparent ball with pure white EVA (ethylene-vinyl acetate) material produced the most striking and consistent lighting effect. This combination not only enhanced the visual appeal but also provided a unique tactile experience, resonating with end users.
After carefully reviewing the test results, we confidently recommended this design to the client. Trusting our expertise, they decided to proceed with the suggested product configuration. As it turned out, this decision was a game-changer, as the glowing, color-changing stress ball achieved tremendous success in Amazon’s end-market sales. The product’s uniqueness and quality attracted consumers, significantly boosting their sales and solidifying their reputation as an innovative, high-quality stress ball seller.
This success story demonstrates the collaborative efforts and deep partnership between our two companies. By combining our manufacturing and product development expertise with their market knowledge and sales acumen, we were able to create a product that not only meets but exceeds consumer expectations, setting a new standard for the stress ball market.

