**Product Specifications:**
**Brand:** JOMA
**Special Features:** Designed for training and matches, covering various needs such as durability and comfort.
**Testing:** Underwent specialized tests including weight, roundness, waterproofness, elasticity, and airtightness tests.
**Materials:** High-quality foam leather, reinforced stitching, strong friction, abrasion resistance, and anti-slip properties.
**Craftsmanship:** Expertly crafted with durable mechanical stitching, premium materials, and effective protection for the bladder and support for the ball structure.
**Design:** Features a butyl bladder, brand logo for excellent foot feel, classic logo for authenticity, and enhanced flight stability for precise passing and shooting.
**Size and Weight:** Available in official sizes and weights, with options for different age groups: #3 for 2-6 years old, #4 for 6-12 years old, and #5 for 12 years old and above/adults.
**Model Display:** Showcases the football model and style introduction.
**Specifications:**
- Diameter: 190mm (#4), 215mm (#5)
- Weight: 350-380g (#4), 410-450g (#5)
- Circumference: 620-650mm (#4), 680-700mm (#5)
**Details:**
- Surface: Foam leather
- Specifications: #4/#5
- Bladder: Butyl bladder
- Color: White/Colorful
- Stitching: Machine-sewn
**Maintenance:**
- Proper inflation: Lubricate the needle with soapy water before inflating to avoid damage to the bladder and valve.
- New ball leakage: Normal for new balls to leak air initially due to interconnected parts; will self-correct after inflation.
- Roundness: Balls may lose shape during transit but can be restored by repeated inflation and tapping.
- General care: Regularly clean off dust and sand to prevent air leaks and extend the ball's lifespan. Avoid prolonged exposure to sunlight or heat to prevent bursting.