Adjustable vibration frequency, can be repeatedly used for a long time.
Secret packaging
Material: Medical Silica Gel + ABS Battery: USB Cable (included) Size:22.5x3.5cm/8.86x1.38'',USB cable length:100cm/39.37''(approx)  
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TrustScore 4.5 | 7,300+ reviews
Ayesha M.
The product exactly matches the description. Very satisfied with my purchase.
5 days ago
Khalid Z.
Great experience from order to delivery. Highly recommended!