Handball
Rule

A.A.U. Four-Wall Rules · American four-wall

Rule 2

HistoricalA.A.U. Four-Wall Rules, 1 January 1920 (historical)

Historical rulebook: not the current rules. The current rules are here (USHA Four-Wall Rulebook, as of 26 January 2025).

Ball shall be Standard Rubber hand ball.

Mentioned here

How this rule changed

See the wording of this rule in every rulebook, with the changes marked.