Review on High-Sensitivity Universal Stylus Pens for iPad, iPhone, Android, Microsoft Tablets, and Other Capacitive Touch Screens - Pencils with Disc & Fiber Tip for Enhanced Precision and Compatibility with Touch Screens by Albert Lee

I thought this black and white pen would be similar to Meko pens where you can remove the magnetic cap from the disc side of the pen and place it on the felt side of the pen. , But that's not the case. So if you use the end of the disc you have nowhere to attach the cap. Otherwise, both sides of the stylus are quite responsive on my iPad and Samsung phones.