Perfect for Dynamic & Static Cupping. ● Can be used as Cellulite Massager, Deep Tissue Massager, Back / Neck / Foot / Calf / Thigh Massager, etc. ● Be sure to PULL UP the Yellow VALVE PIN of cup and make sure it is NOT STUCK before use. ● For body area with tight, rough, uneven skin and scars, it may be difficult for cup to 'grasp' onto the skin. ● Excessive body hair may result in weak suction. Removing body hair & applying massage oil on skin can create a better seal around the rim of the cupping cups