The HP CE516AK3-R Maintenance Kit is designed for HP printers including CP5225, CP5525, CLJ M750, and M775MFP models. This kit includes all necessary parts for maintenance to ensure optimal performance of the printer. With a unit quantity of 1, this maintenance kit is an essential accessory for maintaining the functionality and longevity of your HP printer. Made in China, this kit is a reliable and high-quality product from the HP brand.