The NERF foam construction is engineered for impact absorption, making it suitable for indoor environments. Unlike harder composite or rubber balls, its inherent softness reduces the risk of damage to household furnishings or minor injuries from accidental contact. This material typically exhibits a Shore hardness of around 20-30A, indicating its pliability, which is crucial for minimizing force transfer during play. Its lightweight nature (9.12 ounces) further contributes to a safer play experience for younger users within enclosed spaces.

Yes, the 9-inch junior size is specifically chosen to accommodate the hand dimensions of children aged roughly 6-10 years. This diameter allows for a more secure grip, facilitating the development of proper throwing technique. The foam's tactile surface provides additional friction, enhancing control compared to smoother materials. This design aims to reduce instances of the ball slipping, which can be a common frustration for beginners and hinder their progress in learning fundamental football skills.

The soft but durable foam construction is designed to withstand typical backyard play. While not impervious to sharp objects, it offers good resistance to scuffing and abrasion from grass and dirt surfaces. Its resilience is comparable to many high-density EVA (Ethylene-vinyl acetate) foams used in recreational sports equipment, which typically maintain their shape and integrity through hundreds of hours of moderate use. Occasional cleaning with mild soap and water can help preserve its surface.