Carroterr Professional Tennis Practice Balls, Durable High Elastic Tennis Balls, Advanced Training Balls Thickened Balls, for Tennis Club, School, Practice, Exercises, Training, Competition, Indoor

• Official Standard Size (63mm Diameter) for Pro-Level Play: with a 63mm diameter and 56-59g weight, ensuring compatibility with professional tournaments, and casual matches on clay, hard, or grass courts for consistent performance across all surfaces.
• Dual-Layer Construction: Rubber Core + Felted Nylon Outer: Featuring a high-density natural rubber inner core for 95% rebound consistency (tested to retain shape after 1,000+ impacts) and a premium 180GSM felted nylon outer layer with a 3mm pile height for enhanced grip on spin shots and reduced abrasion on rough courts.
• Laboratory-Tested Bounce Performance: Dropped from 2.54 meters (100 inches), the ball rebounds 135-140cm (53-55 inches)—within the bounce tolerance (130-140cm)—to ensure predictable trajectory for serves, volleys, and groundstrokes in all playing conditions.
• Heavy-Duty Durability for Intensive Training: Built with a reinforced double-stitched seam to prevent splitting during high-velocity hits, a felt surface that withstands 50+ hours of court use without pilling (outlasting standard training balls by 30%), and weather resistance for performance in temperatures from 10°C to 35°C (50°F to 95°F) without losing elasticity.
• Versatile Use – Suitable for All Court Types: Designed to perform well on cla-y, hard, and grass courts, offering players a consistent and dependable experience across different surfaces.

Description 100% brand new and high quality Material:Rubber + felt Color: Fluorescent Yellow Diameter: Approx. 63mm High quality rubber is used as the liner to ensure the elasticity, stability and durability of the ball. The outer layer is made of high quality chemical fibers, which greatly improves the wear resistance of the ball surface. Tennis is standard in size and diameter, specially used for training and competition, and in principle suitable for all types of fields. Good elasticity ---- ball falls from 2.54 m in height, and the bounce range is between 130 to 140 cm. Quality is the first with best service. customers all are our friends. Note: 1. For reasons of taking pictures, please allow slight color differences Package Included: 1 PCS Tennis