Human nature design, no matter is the assembly or gathers that only needs 30 seconds to complete, uses two wheels to move positions, it is also convenient and fast, ordinary time may lock fixedly.

• 人性化设计，不论是组装或收合只需30秒轻松完成，利用两轮移动位置，方便且快速，平常的时候可将之锁上固定。