StringLab is a young Italian company that has been distributing high-quality tennis strings since 2015. Born from an entrepreneurial idea by Luigi Bortone, Stringlab started distributing natural gut strings in 2015, immediately achieving considerable success. In 2016, the product range was expanded to include a line of high-quality monofilament and multifilament strings, Made in Germany, for which we oversee the entire production process, customizing and testing every single product before releasing it to the market.

Our Tests

For our meticulous product testing, we only rely on the best, which is why we chose Pro-T-One by Eng. Gabriele Medri as the official tester for all our new productions. It immediately proved to be a winning combination.

• Determination of the static stiffness (kg/mm) of the string at various tensions
• Determination of the tensile strength at break of the string.
• Tension loss at various tensions after 5 – 10 – 15 – 30 – 60 – 120 min.
• Determination of elastic and plastic deformation