Wilson HAMMER 145 SQ RKT - Multi

Refer to the specifications printed on the racquet frame for the recommended tension range. Typically, this is around 22-28 lbs.

Restringing frequency depends on how often you play and your playing style. A general guideline is every 20-30 hours of play or when the strings lose tension.

A proper grip size allows you to comfortably hold the racquet. The easiest way is to measure the distance from the tip of your ring finger to the middle crease of your palm. Try different sizes to ensure you have a comfortable feel.

Yes, you can customize the racquet with different strings, overgrips, and potentially lead tape for weight adjustments, but only if you have the know-how.

Most tennis shops and sports retailers offer restringing services. Check your local stores.

Wilson products typically have a manufacturer's warranty against defects. Check the product details or contact customer service for specific warranty information.

Check the grip size. Consider an overgrip to adjust the balance or weight to your preference. If it still feels off, have it assessed by a racquet professional.

Consider using a string with higher durability, or adjust your swing style to reduce stress on the strings. Inspect the grommets for sharp edges.