The Gemoro on 5a again suggests (around a quarter down) that possibly only Hanocho does not require 4x4, but Akira could require 4x4. How can this be suggested, since the case just brought was about someone throwing an item, presumably from his hand!
Meir Eliezer Bergman, Manchester UK
Perhaps he picked up the article from a location that was 4x4 before throwing it!
Be'Virchas Kol Tuv,