【Function】
Ribbed Nexus, ABS Material,  Available colors: Black and White 
【Size】
130mm L, 27mm dia
【Material】
ABS
【Attention】
This device is exclusively for individual, please be careful to keep it clean before and after use; when washing it, keep circuit part away from water, avoid to cause electrical fault; keep silicone cover away from dirty matter like ink; before storage, remove battery and reposition back to its normal site respectively in packing box for future use.