Premium material: our ink maintenance box is made of high-quality plastic, filter cotton, which quickly and effectively absorb waste ink, hold more waste ink, stable and reliable and can be used for a long time.Size information: this replacement of ink maintenance box measures about 7.5 x 7.5cm. Please check the size carefully before purchasing.COMPATIBILITY: The ink maintenance box is compatible with for . Suitable for XP-3100, XP-4100, XP-4101, XP-4105, Workforce 810DWF, -2830DWF, -2850DWF, -2930, -2950, -2851, L3550, L5590. Please note that our product is not sponsored or endorsed by the it fits, including for , or endorsed or affiliated.Usage Tips: Follow the instructions to install the ink maintenance box, which can prevent the print head clogging and extend the life of the printer.Color:BlackMaterial:plasticPackage Contents:1 * Ink Maintenance BoxOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.