Alu Power Rough uses a structured surface to generate additional spin – perfect for baseliners who want to create power and spin with fast, full swings. Its buckled surface also gives more string flexes, which in turn gives a slightly softer and more forgiving feeling. This string contains the same material composition as the ALU Power collection, which gives control, feel and comfort of the highest quality. The meter of 1.30 mm is slightly thicker than 1.25, making it a more durable alternative. It is an iconic string that has been used by the legendary Roger Federer.