Made of thick and wide plastic, non-slip which can protect the computer and reduce the vibration of the desktop. Multiple gear height adjustment, height can be raised and lowered, and adapted to comfort Made of thick and wide plastic, non-slip which can protect the computer and reduce the vibration of the desktop. Multiple gear height adjustment, the height can be raised and lowered, adjust to a comfortable angle according to your special needs, relieve the pressure on the back, reduce eye and neck strain Triangle design, more stable structure, more durable ability helps to aerate your laptop or tablet, accelerate cooling, more convenient for computer ventilation and cooling Compact and portable: Thin and lightweight; Folds flat for easy carrying anywhere laptop holder: Length: 17 cm Width: Maximum Height: 5.5 in Fits Most Tablet and Laptop.