These balls are engineered for the specific playing conditions of women's and youth tennis, where slightly lower pressure and optimized felt durability improve control and reduce arm strain.
These balls are engineered for the specific playing conditions of women's and youth tennis, where slightly lower pressure and optimized felt durability improve control and reduce arm strain. Understanding the technical parameters helps procurement managers select a product that meets training and match requirements while minimizing variability across batches.
| Parameter | Typical Value | Notes |
|---|---|---|
| Diameter | 6.54–6.86 mm | ITF approved range for Stage 2 (youth) balls |
| Weight | 47.0–48.0 g | Tolerance ±0.5 g per ball |
| Internal Pressure | 1.45–1.65 bar | Lower than adult balls to reduce bounce height |
| Felt Composition | 70% wool / 30% nylon blend | Provides durability and consistent playability |
| Rebound Height (100 inch drop) | 100–115 cm | Measured per ITF Appendix B |

The core is made from natural rubber compounds formulated to achieve the target pressure range while maintaining elasticity over thousands of impacts. A pre‑pressed felt jacket is bonded to the core using a water‑based adhesive that avoids solvent residues, ensuring consistent feel and reducing delamination risk. The felt is needled to a uniform density, which controls fluff and provides a predictable friction coefficient across the ball surface.
Each production lot undergoes a batch bounce test where a sample of 24 balls is dropped from a standard height; the average rebound must fall within the specified 100–115 cm window. Weight is checked on a precision scale with a tolerance of ±0.5 g, and visual inspection detects felt irregularities, core deformities, or seam defects before packaging. These controls limit the standard deviation of performance characteristics to less than 2% across a shipment.
Balls are packed in three‑layer corrugated cartons that hold 72 balls each, with internal dividers preventing movement during transit. Cartons are stacked on pallets secured with stretch film and include a moisture‑barrier sheet to protect against humidity fluctuations. Standard pallet configuration holds 48 cartons, facilitating efficient loading for both domestic and export shipments.
To discuss volume pricing, lead times, or specific customization needs, please reach out to our sales team. Providing your anticipated annual quantity and any branding details will allow us to prepare an accurate quotation.