Features: brand new and high quality PREMIUM QUALITY. This refill ink adopts quality photosensitive ink, quickly drying, waterproof, light proof and eco-friendly. WIDELY USE. Professional for protection stamp replacement ink. Small but functional. Easy to refill. DURABLE AND PRACTICAL. Needle tip design, no leaking. Accurately and cleanly refill without dirts. CAPACITY. 10ml black refill ink. TIPS: Just slowly add 5-6 drops each for time. Reusable and durable. No faded. REGULAR REFILL INK. Compatitable with majority for protection identity guard stamps. Produces crisp, clear for image impressions. for Ideal for a variety of applications. Specifications: Material: Photosensitive Ink Color: Black Bottle Size: Approx. 5.9x2cm/2.32x0.79in Capacity: Approx. 10ml Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Piece Stamp Refill Ink