Pack of 5 pieces. The Microsoft Classroom Pen 2 (Modello 1896, NWH-00001 Code, Platinum color) is an active and precise stylus designed specifically for teaching environments, but also suitable for professionals using Microsoft Surface devices. This model is optimized for greater durability and ease of use by students. High Precision: It offers a natural writing and design thanks to pressure sensitivity (typically 1024 levels). Design Robusto: Designed to resist everyday wear in school environments. Ergonomics: Comfortable shape and reduced weight (about 8g without battery) to fit different hands. Additional features: Two side buttons on the stem that allow the function of Rubber and Right/Select Key . Use Microsoft Pen Protocol (MPP) 1.0/2.0 protocol and is widely compatible with the Surface range (Go, Pro, Laptop, Studio). Power supply: Each pen works with a single AAAA battery (5 batteries included in the package).