Yonex ArcSaber Delta (AS-Delta) is the 2012 model released by Yonex within the ArcSaber series. The Yonex ArcSaber Delta is an even balance racket with a medium stiff shaft offering fast swing speed and all-around type of play with good control. Racket comes with full cover.

The ArcSaber Delta uses the Aero-Box Vari Frame reduces wind drag compared with a standard air-flow pattern, maximizing the power of the swing and the transfer of energy to the ball. By introducing Nanoair Spring into the resin which binds the carbon fibres, nanoscale air bubbles in the material help the racquet to flex and bend as in a spring. The result is a better transfer of energy from string-bed to shuttle for a more powerful shot.

• Isometric : The Isometric Square Head Shape equalizes the length of main and cross strings in the stringbed, enlarging the sweetspot for more consistent accuracy even on off-center hits.
• Built-in T-Joint : Moulded deep into the layers of graphite where the frame connects with the shaft, the YONEX built-in T-Joint creates a durable and high-strength one-piece frame that is torque-free.
• Control Support Cap / C.S. Cap : Control Support Cap provides 88% wider flat surface compared with an ordinary racquet for easy gripping, fast swing-through and the quickest manoeuvrability.
• NanoAir Spring : The NanoAir Spring helps the shaft return from its bent position to its original position fast to increase repulsion and thus create more power.
• Aero-Box Vari Frame :The Aero-Box Vari Frame reduces wind drag compared with a standard air-flow pattern, maximizing the power of the swing and the transfer of energy to the ball.