AZX Stylus Active Pen for HP Pavilion x360 11m-ad0 14M-ba0 14-cd0 15-br0 HP Envy x360 15-bp0 15-bq0 x360 15-cn0 X2 12-e0xxX2 12g0xx HP Spectre x360 13-ac0xx 15-blxxx with AAAA Battery & Nib (Silver)

Stylus Pen for HP Pavilion/Envy/Spectre x360 Touchscreen Laptop Pencil-Specified Surface Pen Microsoft Pen Protocol Inking Model

Amazon Basics 4-Pack AAAA Alkaline High-Performance Batteries, 1.5 Volt, 3-Year Shelf Life