Hydra Facial Microdermabrasion Machine for Skin Care with Aqua Peel 

This is a most popular combination with diamond microdermabrasion and cold & hot hammer.
Microdermabrasion is a mechanical form of exfoliation of the outer dead layers of skin. The fine metal particles on the handle tips will remove dead layers in back and forth movements on skin surface, and then the layers will be sucked into the filter bottle by vacuum.

Cold & hot hammer is usually used to open the pores, activate the cells before some kinds of operations, and calm down the skin and shrink pores after treatment.