This laptop provide a better tying and working experience for you. Elevate the laptop, so that you can keep an appropriate angle and use it more comfortably. Give you an appropriate angle, good for typing and working, a must have for every office worker. Features -Color: Black -Material: Rubber -Size: 2.50X0.50X0.50cm/0.98X0.20X0.20 in. -Compatible Mode: Compatible with X240 X260 T440 T450 T450S L440 L450 T540P W540 - Prevent sliding on smooth surfaces, like glass, plastic, ceramic, wood, etc. - Allow you to raise your viewing angle and improve your typing experience, thus relieving the on your neck and back. - By elevating the laptop, add bottom air circulation reducing laptop temperature to achieve the purpose of heat dissipation. - A present for your friends, family or colleague, show them your concern. - It will not any damage to your computer, simple in design but practical in use. Package list: 4 x pads