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/PackColour:blackMaterial:Acrylonitrile Butadiene Styrene (ABS)Package Contents:10 * Pen NibsOnly 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.