Most items target toddlers and young children. Pit-ball packs commonly list ages around 2–3+, many mini-ball sets list 3+, and larger playballs often list about 3–4 years and up.
Some mini inflatable or basketball-style sets are described as usable for water or pool games. A few indoor/outdoor playballs are noted as having a waterproof shell suitable for wet conditions.
One seller recommends about 400–600 balls to fill a ball pit. Several play-tent listings note that balls are not included but do not give a recommended ball count.
Balls are commonly used in ball pits, play tents, crawl tunnels, bounce houses, and other indoor or outdoor active-play environments.
Many play tents and tunnels fold up or pop open for compact storage, and some ball packs include mesh or zippered storage bags to make transport and storage easier.