Brand Name: PSWWSP Is Batteries Included: No Material: Plastic Working Principle: Others Power Source: None Electric High-concerned chemical: None Origin: Mainland China Type: Fitness Face Masseter Power Source: None Electric Model Number: Jaw Exerciser Certification: CE Certification: FCC Function: Lifting Manufacturing Process: Machine Made Number of Pieces: One Unit Jaw Exerciser: Fitness Face Masseter Jawline Trainer: Double Chin Remover Face Fitness Ball: V Face Lifting Machine Facial Muscle Exerciser: Facial Muscles Trainer Jawline Training: Neck Muscles Trainer Double Chin Slimming: Mandibular Lift Cheekbones Trainer: Jawline Simulator Choice: yes semi_Choice: yes