Laptop Stand Riser Silicone Non-Slip Foldable Desk Stand for Desk Gray Alloy material, four-speed adjustment, sturdy and stable, non-slip silicone pad, heat dissipation recess, no structural obstruction, improve passenger airflow, accelerate heat dissipation, and more conducive to computer ventilation and heat dissipation Comfortable posture, relieve work pressure, and keep daily work full of new energy Universal tablet, convenient for work and entertainment! Four-speed adjustment, comfortable viewing angle experience Saigang shaft, locks the middle shaft of the support frame, which is more durable. The intimate design of the non-slip and scratch-resistant silicone pad does not damage your laptop. Multiple sizes, multiple compatibilities, foldable and portable, just go Specification: Size: 9.84x8.66 inches / 250x220mm Material: steel Product Weight: 0.88 kg Package includes: 1x Labtop Stand 1x Box