Silicone Nib Tip Cover Make sure there is no gap between the pencil tip and the cap. compactly installation, or it may not work properly. Protect Apple Pencil's nib from wearing down by the matte screen protector, extending the life of Apple Pencil. It eliminates the buzz when the Apple Pencil tip hits the iPad screen. Easily and quiet write, paint, draw, and sketch without any influence. Designed for the Apple Pencil Nib, Fit 1st & 2nd Generation. It's easy to install this nib cover on your Apple Pencil without any tool.