Features: Highly sensitive felt tip provides smooth lines. Pen clip design is easy to carry and ensures long-time use without fatigue. High-quality felt material extends the life of the pen tip. Seamlessly compatibility perfectly for series of digital tablets without additional adjustments. Reusable pen tip reduce waste and support environmental protections concepts. Specifications: Material: Felt Process: Fine processing to ensure smooth and durability refill Length：about 21mm/0.83in Standard refill size, strong adaptability Comes with pen clip Suitable for PW517 PW110 for KD200 Digital tablets Quantity： 5pcs/10pcs Package Includes: 5/10pcs Felt Refill 1pc Pen clip note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution