Identify notebook model - Which laptop do I have?
The exact model designation is usually on a label on the back of the notebook. They need this to identify the notebook model.
Active Pen incl. battery original suitable for Lenovo Yoga 720-12IKB (81B5)
ThinkPad Pen Pro incl. battery original suitable for Lenovo Yoga 720-12IKB (81B5)
4X80N95873 original Lenovo Active Pen 2 incl. battery