This is a pack of three genuine HP 61 (CH562WN#140) tri-color ink cartridges compatible with HP Deskjet 1000, 1010, 1050, 1051, 1055, 1056, 1510, 1512, 2050, 2510, 2512, 2514, 2540- 2544, 2546-2549, 3000, 3050, 3050A, 3051A, 3052A, 3054, 3054A, 3056A, 3510, 3511, 3512. Envy 4500- 4502, 4504, 4505, 5530, 5531, 5532, 5535. HP officejet- 2620, 4630, 4632, 4635. The cartridges are designed for inkjet print technology and have a height of 4.05 inches and a width of 4.49 inches.