Buffer Soft Rubber Ring Buffer soft rubber ring to reduce the impact of a suddenshrp drop of the installed equip-ment when adjustingthe height so as to protect your equipment. Builtin Buffrt Spring Effectively protect equipment andpersonal safety and avoid impact damage Strong connection joint Anti-fall and anti-shock structure help fix the stand more firmly on the ground with long lifespan. 3-leg Support The light stand features three legs that angle outward and connect to the center post for ultimate stability and strength.