1DOUBLE NOZZLE: The ink cartridge is designed with dual nozzles, which is more stable and more practical. 2NO BLOCKAGE: The particles are extremely fine and do not block, and the adhesion is strong and not easy to fall off, which can hold more ink. 3CLEAR CODING: The height of the inkjet code is about 1.27cm, the inkjet code is clear and the color is bright. 442ML CAPACITY: The ink cartridge has a capacity of 42ml, which can directly replace the old or broken one without changing the printer settings. 5BLACK CARTRIDGE: The inkjet color is black, with quick drying characteristic, and is widely used in handheld inkjet printers. Item Type: Ink CartridgeProduct Model: JS10 (M)Cartridge Capacity: 42mlCoding Color: BlackPrinting Height: Approx. 1.27cm / 0.5inNumber of Prints: About 800000 charactersProduct Size: Approx. 9 x 2 x 7cm / 3.5 x 0.8 x 2.8in 1 x Ink Cartridge 1. Insert and take out cartridge is forbidden in print status.2. Please use the ink cartridge in the correct method.