This string is designed to maximize spin potential and durability

while Touch VS provides top-notch power and comfort

Mixing up the ball rate interval simulates match play and keeps players on their toes

the Pro Penn Marathon Extra Duty is an excellent choice

Lobster External Battery Pack Size_110311 Medium (B) This string is designed toThe Lobster External Batter Pack allows your to get the most out of your time on the court. The external battery pack provides an additional 4 8 hours of time on the tennis court. Compatible with any of the elite series ball machines. Includes a large 18 amp sealed lead acid battery, battery cord with connector, XLR adapter, 1 amp fast battery charger, and a canvas carrying bag. Note: Larger items like court equipment, and tennis ball machines (often