90°-180° metal tilt frame with 5 locking positions, ergonomic structure intelligently adapts to different body shapes, one-touch adjustment can lock the ideal sitting position, providing personalized support experience for users of all weights.Space-saving foldable tatami sofa bed converts to a recliner/lazy bed, Compact storage design fits into any room layout (living room, bedroom, under the bed or next to the sofa.Study, work, play and meditation chair, also a good place for children to take a nap, can balance work and entertainment, suitable for multi-scenario family use.