REDSON SHAPE 01 The REDSON SHAPE 01 is a premium flagship racket featuring a patented "Dimple Shape" frame that reduces air resistance by 10% for lightning-fast swings. Made in Taiwan with high-grade Woven Carbon Fiber, it utilizes a unique grommet-free design to enhance hitting sound and provide crisp, direct feedback. This 4U model is perfect for players seeking a balanced mix of speed, stability, and superior shot feel. Length: 674mm Weight: 4U (80-84g) Suggested Tension: 4U (20-26lbs) Shaft Stiffness: Moderate Balance Point: 4U (290-295mm) Color: White (01), Navy Blue (49), Black (90), Lavender (35) Country of Origin: Made in Taiwan Feature Aerodynamic Dimple Frame: Patented surface reduces drag for significantly faster swing speeds. Grommet-Free Design: Direct string-to-frame contact creates a clearer hitting sound and tactile feel. Woven Carbon Construction: Enhances torsional stability and structural strength by 20%.