4 pack T812 812XL empty replacement ink cartridges WITHOUT CHIPS for wf-7840 ec-c7000 wf-3820 wf-4820 wf-4830 wf-4834 printers.Reusable cartridges allow you to refill ink multiple times. Widely used in offices, schools, homes, etc.Features:? Chipless ink cartridges, you need to prepare yourself.? Refillable empty cartridges, no need to buy and replace frequently.? Transparent shell design, easy to directly see the amount of ink.? Easy to add normal ink, use included gloves and ink dispenser.Warm Tips:1. Comfirm your printer ink cartridges model before purchasing.2. NOT INCLUDE CHIPS. Make sure you have these chips before purchasing. 3. Don‘t tear off the clear plastic film from the round hole at the bottom of cartridgeSpecifications: Item Name: T812 812XL Empty Refillable Ink Cartridges Color: White Transparent Shell Each Ink Cartridge Size: 4x2x0.5in What You Get: : 4 * Empty Ink Cartridges 4 * Ink Auxiliary Absorbors 4 * Disposable Gloves Enjoy relaxing shopping time. If you have any questions about our products, please fell free to contact us first.