Review on 🖨️ Cool Toner Compatible Toner Cartridge Set for HP 131A 131X Laserjet Pro, 5-Pack by Mark Cannon

I was skeptical. I am absolutely satisfied with the tonic. Yes, there are 5 rounds of 2 blacks. DO NOT throw away empty OEM cartridges in case you need to refill them. Cool toner cartridges come with a memory chip installed. My printer recognized the new cartridges but said they were not HP and this may affect the warranty. Doesn't matter! They claim that buying a new printer is cheaper than replacing the toner. The packaging they are packaged in looks different than the promotional image. There seems to be a TON of toner in these cartridges. MUCH more than OEM. I will buy another backup kit.