Threw these at a gender reveal and the confetti pieces are actually shaped, not just plain rectangles, which looked way better in photos than I expected. At 15 cm they fit easily in one hand and popped on the first pull every time.
Used these at my sister's birthday and the shaped confetti fluttered down slowly instead of dropping straight, which looked great in photos. The 15 cm popper fits easily in one hand, so even the kids could set them off without help.
The shaped confetti burst out way higher than I expected and fluttered down slowly enough that everyone actually saw it. Simple twist at the bottom and it fired every time, no duds out of the dozen we used.