For HUION Pen Nib for Digital Pen PW500 PW507.Quick installation and easy removal offer you maximum convenience.Replacement, smooth writing, easy to use. What drawing tablets are the nibs compatiblet with:For HUION Q620M, HS611, Q11K V2, WH1409 V2 , G10S, G920S. What drawing monitors are the nibs compatiblet with: for HUION Kamvas 16(GS1561), Kamvas 20, Kamvas Pro 16/12/13, Kamvas Pro 20(GT-192), Kamvas Pro 20 2019, Kamvas Pro 22(GT-221), Kamvas Pro 22 2019, GT-191 V2. What's in the box:10 pieces nibs replacement included in every pack, work fit perfect.It can bring you a smooth writing experience and is durable. Nib Length:18.1mm;10pcs/Pack<br><br>Colour:black Material:Acrylonitrile Butadiene Styrene (ABS)<br><br>Package Contents: 10 * Pen Nibs<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.