• Strings: The optimum tension for power depends on the player String tension is normally in the range of 80 N (recreational players) to 160 N (professionals).
• Grip: The choice of grip allows a player to increase the thickness of his racquet handle and choose a comfortable surface to hold. There are two main types of grip: replacement grips and overgrips.
• Shuttlecock:A shuttlecock (shuttle,birdie) is a high-drag projectile, with an open conical shape: the cone is formed from sixteen overlapping feathers embedded into a rounded cork base. The cork is covered with thin leather or synthetic material.Synthetic shuttles (nylon) are often used by recreational players to reduce their costs as feathered shuttles break easily.
• Shoes: The proper badminton shoes will have a little lateral support and a very thin sole, lower a person's centre of gravity, and therefore result in fewer injuries.