Butterfly Tenergy 05

Density: 36
Spin: 11.5
Speed: 13
Reglue Effect: Medium
This is the first rubber to feature Butterfly&339s new "Spring Sponge". Spring Sponge feels hard yet its new technology allows it to hold the ball on the racket longer. Tenergy 05 combines this new explosive sponge with a new tensioned top-sheet with maximum surface grip. The result is a rubber that produces massive amounts of spin on serves and topspin drives. Tenergy is also the fastest most explosive rubber in our line all without the use of any speed-glues or tuning. Tenergy will keep its speed throughout the life of the rubber without need for any special treatments. Finally a rubber that will make you feel like you are playing in the days of the 38 mm ball again!