Adonit mini 4 stylus for touch screen devices is a powerful and pocket-sized tool built to withstand daily use. The new split barrel design houses the disc tip within its own solid metal barrel body, keeping the disc tip securely in place and protected when on the go. To use, simply untwist the two barrels at the color seam to reveal the disc tip, flip it around, and twist closed to securely attach. Stylus features accurate, natural writing secure and durable design split barrel design compatibility: mini 4 is compatible with all touchscreen devices