Your purchase includes 2 L-shaped brackets, 1 connecting rod, 6 screws and 1 inner 6 angle wrench. With 4 grip strips on the brackets and the bottom of the bracket curved up, your laptop will sit securely, safely and unscratched. The simplistic shape of the laptop riser leaves room for airflow, preventing your laptop from overheating. The aluminium riser sits at a comfortable 16-degree angle. The connecting rod at the bottom of the back of the riser is 185mm long, the bracket is 250mm long, and the higher back end of the riser is 80mm tall.