Fabric:Telescopic stool: 50% ABS + 50% PP Product features: Composed of 11 integrated load-bearing rings purely hand-assembled, seamlessly connected with load-bearing buckles and locked layer by layer, safe and reliable in use Easy to open in seconds, ready to use, internal auxiliary spring design, stretch more smoothly, average 1-2 seconds to complete the operation Instructions: 1. Put your hands in the bottom of the left lamp and the recess at the top to lock it counterclockwise, and lock it clockwise to secure and close 2. Turn on the safety switch counterclockwise and stretch to the desired height 3. Rotate clockwise to fix the stool and rotate counterclockwise to shrink the stool 4. After completing the operation, be sure to use it in an upright state, do not use it at an angle Tips:1.Size issue:There may be discrepancy of 1-3cm in measurement.This is understandable.2.Please note that slight color difference should be acceptable due to the light and screen.