Bespeco Telescope Tube Structure Monitor Stand Black PN90FL

Automatic push button mechanism that allows the tube lift but avoids the fall

Steel external tube diameter: 40 x 1.2 millimeters, Aluminum internal tube diameter: 35 x 1.2 millimeters, Steel squared base: 35 x 1.2 millimeters

Speaker and monitor stand with telescopic tube structure: steel external tube diam. 40 x 1.2 millimeters and aluminum internal tube diameter 35 x 1.2 millimeters.