Features: Conveniently reset ink tank chip suitable For WorkForce WF-3640 WF-3620 WF-3720 WF-3725 WF-7710 WF-7720 WF-7715 WF-7725 WF-7210 WF-7610 WF-7620. Effortlessly restores functionality to your ink cartridges, ensuring uninterrupted printing tasks. Suitable for enthusiasts who save on ink cartridge costs. Lightweight and portable, allowing easy use for home or in office environment. User-friendly interfaces enables quick chip resetting without complicated procedures. Construction ensures reliable performances with repeated use over time. Specifications: Component:ABS Size:Approx.80x50mm/3.15x1.96inch Package Includes: 1Pc Ink Cartridge Chip Maintenance Box note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.