Features:Compatible with WF-3620 WF-3640 WF-7110 WF-7210 WF-7610 WF-7620 WF-7710 WF-7720. NOTE: Please confirm your printer ink cartridge type before purchasing. Fillable capacity: 50ml for black ink cartridge, 20ml for per color ink cartridges. Compatible ink types: dye ink, pigment ink, sublimation ink and more. Transparent shell design, easy to directly see the amount of ink and refill ink through the ink cartridge port with syringe. Easy to install, reusable cartridges allow you to refill ink multiple times. You don't have to buy and replace new ink cartridges frequently, saving money and environmentally friendly.Warm Tips:1. Please confirm your printer model before purchasing.2. Not a toy, please keep away from children.3. Please do not mix these ink cartridges with other types.

4. Do not remove the transparent plastic film on the bottom of the ink cartridge. The printer will pierce the membrane during installation.5. Please do not touch the chip when installing.Specification: Item Name: Reusable Empty Refillable Ink Cartridges Material: ABS, Plastic Shell Color: Transparent Package Weight: 0.17lb Black Ink Cartridge Size: 2.6x1.8x1.4in Color Ink Cartridge Size: 2.6x1.8x0.5inPackage Included:1 x Ink Cartridges

Shipping and return policy:1. We'll generally proceed orders within 24 hours once the payment is received.2. China post ordinary small packet plus and China post registered air mail takes estimated 15-60 days.3. Recommended shipments: Aliexpress standard shipping--more stable,safer,faster4.We also offer express shipping like DHL, UPS, EMS etc, please feel free to contact us if you are urgently in need of it or the quantity islarge.5. We accept returns and refunds within 15 days after order completed, please contact us.Drop shipping and wholesale:1. We drop ship everywhere in the world, please feel free to contact us if have any questions or concerns.2. We will offer best price for wholesale, and recommend the best shipment.Feedback:1.Please leave 5 star feedback if you're satisfied with our products and service, we will appreciate it (Item as Described 5 stars, Communication 5 stars, Shipping time 5-stars).2.If the products you received was damaged or wrong styles, please don't leave any negative feedback first, kindly please contact us,we will deal with it and work out the best solutions, your satisfaction is our motion to do better.