4 Five Blade Replacement Cartridges. Preserve Shave 5 cartridges feature 5 ceramic coated blades for improved comfort and a lubricating strip with cocoa butter and aloe. Cartridges are compatible with POPi Shave 5 Razor and Preserve Shave 5 Razor. 25% of proceeds from sales of these blades are donated to nonprofits that work to clean up our oceans and beaches. Cartridges and tray are not made from ocean plastics. preserve.eco. 888-354-7296; preserve.eco. Certified B Corporation. For more information about the Preserve Ocean Plastic Initiative (POPi), visit preserve.eco/POPi. Package is made from 100% PCR paper and printed with soy ink. No animal testing. Blades made in USA, assembled in Mexico.