オフィスチェア　デスクチェア　メッシュ　通気性　昇降回転　高反発ウレタン　柔らか　安定性　チェア　オフィスチェア　シンプル　快適　ブラック　BGY-S095

This chair base is made of mesh and urethane foam, with a black nylon frame. It weighs 10kg and can be assembled. The chair base supports smooth, low-vibration movement and has anti-slip casters.

• The description claims the air cylinder has passed repeated lift and lower durability tests.
• The description claims the air cylinder contains liquid nitrogen for safety and reliability.