The toner is specifically made for the HP C3900A (00A) cartridge.

Refilling laser cartridges is actually quite easy. Our instructions will guide you step by step.

With this kit, you can reuse your expensive laser cartridge for huge $$$ savings. In addition, reusing your cartridge is an environmentally-friendly choice.

NOTE: The refilling procedure requires making a few holes in the cartridge. An electric drill is not recommended; it is much easier and highly recommended that you use our specialized toner holemaking tool.

Each laser refill kit contains the following:

• 2 425g bottles of black toner
• One funnel-shaped cap
• Aluminum tape
• Easy and detailed instructions