The rolling pin is designed with two handles, which makes the operator more relaxed and labor-saving than the traditional scraping board. The contact area between the tendon patch and the skin is wide, and the pressure on the skin is large or small, which makes customers feel slight pain and completely detoxifies deep acne; The unique deep groove and double groove design of the rolling pin makes the human body get out faster and scratch less; The humanized design of the upper and lower double notches of the rolling pin not only allows the joints, armpits, neck and inner sides that are difficult to dredge to discharge heat and toxins well. The operation is simple, and customers can feel the effect in 3 minutes, which is a visible effect. With rib herbal oil and rib beech stick, it can penetrate subcutaneous tissue for 3 seconds and enter bone for 3 minutes!