Choose from one of four tips in Surface Pen Tip Kit. The Pen Tip Kit is included with a purchase of Surface Pen, or you can buy it separately to have extra tips on hand. Compatible with Surface Book, Surface Pro 4 Choose a pen tip with the right feel for you. Stay with the medium tip with the familiarity of a #2 pencil or swap it with a low-friction tip similar to a fine-point pen. Choose from one of four tips in our Surface Pen Tip Kit. The Surface Pen Tip Kit is included with a purchase of Surface Pen or you can buy it separately to have extra tips on hand.