Easy to use.
Great for giving you energy.
Improving your concentration.
The size suit for most of people.
Make your fingers more relex whe your fingers feel tired.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.99 inch
Height : 0.98 inch
Length : 4.25 inch

Item Weight: 1.44 ounce (View shipping rates and policies)
Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B072MC1ZCX