Features: 10Pcs replacement nibs with clips ensure seamlessly compatibility for Pen 3 PTK470 PTK670 PTK870 DTH135 DTH172 series tablets, delivering precise pen control for uninterrupted creative workflows. From wear resistant felt, these pen tips imitated natural pen on paper resistance while maintaining scratches resistant durability across multiple screen surfaces. Essential for digital art professional requiring consistent tactile feedbacks for illustrators, 3D modelers, and graphics designers working devices. Enhances line accuracy during prolonged editing, Studio Paint illustrations, or drafting projects requiring pressure sensitive precisions. Each nibs ergonomic clip designing enables quick tip replacement without interrupting creative flows. Specifications: Item:Pen Nibs Refill Tips Material: felt Size: about 2.1cm/0.83in for Pen 3 PTK470 PTK670 PTK870 DTH135 DTH172 Quantity: 10pcs Package Includes: 10PCS Pen Nibs with 1 Clip note: Due to problems of lighting effect there will be certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement