Compatible: for Samsung galaxy tab S9/S9 ultra/S9 Plus/S8/S8 Plus/S8 ultra/S7/S7+/S7 FE/S6/S6 Lite/S24 ultra/S23 ultra/S22 ultra/Note 20/Note20 ultra/Note 10 ultra S Pen. please make sure your model before buying. PACKAGING METHOD: The plastic organizer can be more convenient to keep the nibs, at home or in office meeting scenarios, the organizer can keep the nibs neatly. Advantages of Metal nibs: Durable, wear-resistant, lightweight, beautiful, won't wear out or break compared to plastic nibs, can be used with fountain pens for a long time. The nib is smooth and not easy to scratch the screen, just like a fountain pen writing on paper, a screen protector is recommended for a smooth writing experience and to protect the screen. Advantages of plastic nibs: closer to the for original-nib, more reflective of the 4096 pressure sensing, lighter, 0.7mm nib allows you to operate the screen more accurately.The nib is smooth and not easy to scratch the screen, just like a fountain pen writing on paper, a screen protector is recommended for a smooth writing experience and to protect the screen. Nib Installation: nib installation is simple! Use the pen clip to clamp and pull out the old nib, then take the nib and insert it to use. Colour:Black Material:Metal+Plastic Package Contents: 2 * metal nibs 6 * plastic nibs 2 * pen clips