Butterfly Vibration Lock Ring

Function: 10 Frequency Vibration

Color: Black/Black + Red

Size: 8.8 * 4.7 * 3.8 cm/3.4  * 1.8 * 1.5 inch

Inner Dia: 3.3-3.7 cm/1.3-1.4 inch

Net Weight: 49 g/0.1 lb/1.7 oz

Power: Lithium battery

Material: ABS + Silicone

Package: Color Box

Further: Waterproof

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