STYLUS PENS FEATURES: aluminum cylinder pen body, the position of the disc tip is connected by metal steel balls to improve life and double durability. Both ends are replaceable, providing a smooth pen-writing experience for your touchscreen tablets and smartphones. STYLUS PENS DESIGNd: bid farewell to the traditional design, two-way magnetic cap, do not need to twist or push the hat back, just put the hat close to the pen, (both sides) will automatically absorb. COMPATIBLE PRODUCTS: Apple iPad, iPad Mini, iPhone, Android Tablet, Android Phone, Samsung Galaxy, Microsoft, and other capacitive touch screen devices.