About the kung fu Qiang Shu (chinese spear)...?

ok, so the chinese spear is made of waxwood for durability + flexibility, and the red horsehair on the spearhead is for confusing the enemy and stopping the flow of blood from head to shaft.





now i always wonder why is there a bell inside the spearhead?? been bothering me for the longest time|||a bell inside the spearhead锛?then the audience can hear the performance. in fact there was no bell in the history.|||when it hits it sounds so they kno it hit