Head MX Spark Pro Tennis Racket | Black Swimwear - Boys Developed using gel-like materials and

Developed using gel-like materials and featuring Speedo Biofuse® technology

floating zip

5 mm Yamamoto 38 material

The Vista Jr fits like a mask by sealing around the outside of the eyes

Head MX Spark Pro Tennis Racket | Black Swimwear - Boys Developed using gel-like materials andBring some new energy to the court with the pre strung SPARK PRO TENNIS RACQUET, which is easy for beginners to handle and manoeuvre. METALLIXSpecially formulated crystalline metal alloy with a grain size 1000 times smaller than that of a typical metal creates a much stronger material. The Hall Petch Effect states: smaller grains = stronger material. The result is a lighter, stronger and more powerful racquet.