Overview: 1. The Hydration Roller is a 2-in-1 system. As you roll the microneedle roller over your skin, it simultaneously uses your favorite serum. 2. Skin Roller: This new beauty massage tool combines a skin roller and a serum introducer. The serum can be continuously and automatically introduced while rolling. 3. This new beauty massage tool combines a skin roller and a serum introducer. The serum can be continuously and automatically introduced while rolling. The user-friendly design eliminates the need for application and is easy to operate. Product Information: Makeup tools classification: other makeup/beauty tools Specifications: 0.25mm,0.5mm,1.0mm Size: 10.5*6.5 * 3cm Color classification: black, white, pink Packing List:...