This Yonex RDX 500 tennis racquet is a high-quality item made in Japan with isometric flex torsion technology. The racquet has a mid 90 square inch head size and a grip size of 4 1/2 inches. It has a 16 x 18 string pattern and is an excellent choice for players who want precision and control in their game. The brand Yonex is known for producing quality tennis equipment and this racquet is no exception. Whether you are a professional or a beginner, this racquet is perfect for enhancing your tennis skills.