Adjuvant Common Cartridge 1000ml for Shampoo x1 1000g for Treatment x1 New, Unused Not sold separately Easy to use, just set the refill eco-pack How to use: 1. Fold the refill eco-pack at the line and push it into the bottle. 2. Cover the bottle with the bottle cover, push it down, and turn the bottle to set it. 3. Turn the pump head to the left to raise the pump. Press the head a few times to dispense the contents. Immediate purchase welcome This is a sale on Mercari, so If you are concerned, we recommend purchasing from a hair salon. Sales are only for those who understand everything. Thank you for your understanding. m(__)m