Wilson Ultra Power Junior 21 3 1/2 WR118910H Tennis Racket Properties: The Head children's racket is perfect for recreational tennis games. AirLite Alloy technology creates a lightweight and durable construction. AirLite Bumper technology provides lightweight protection for the racket head. Stop Shock Sleeves technology reduces string vibration. The oval cross-section of the C-Beam frame provides more energy to impacts and improves stability. Aluminum construction. The racket comes with a 3/4 zipped cover with an adjustable strap. Technical data: Age: 5/6 years or height 104-117 cm Handle size: L0 (3 1/2) Material: aluminum Racket weight (unstrung): 178 g Racket length: 53.3 cm - 21” String pattern: 16x16 in Balance: 24.5 cm Head area: 581 cm² / 90 in² · Wrap: factory Factory tension: yes 3/4 cover included: yes