Machine Sewn

• Advantages: Very low cost, ideal for children, casual play in the yard, at the park, or on the beach.
• Disadvantages: The seams are more superficial and exposed. If the ball is hit hard against a sharp object (e.g. fence wire), the thread may break and unravel. They also absorb water easily.

Butyl

Retains air for weeks without needing inflation, but has a slightly firmer feel on impact.

Balls with a bright color, designed for play in low light conditions, such as fog, rain or snow.