✔️ Quality Certification: JUMMICO height adjustable desks are TÜV/CE/BIFMA/FSC certified. The stability of the desk support and the durability of the motor have been tested more than 10,000 times. The industrial grade steel frame combined with the sturdy laminate can withstand up to 70 kg of weight.With a lifting speed of 20 mm/sec and a noise level of less than 50 dB. ✔️ Ergonomic Function: prolonged sitting can cause back and neck pain. The JUMMICO standing desk can be freely adjusted in height from 72 cm to 118 cm, allowing you to alternate between sitting and standing, relieving leg numbness