This product is a perfect mini size hand strengthener. Its proper size and special tyre appearance bring a lot of benefit to you. You can carry it anywhere and anytime for its small size. And the anti-skidding lines on it can stimulate your hand's acupuncture points and give massages to your hands. No more waiting. It is a good choice for you.

Features:
100% brand new and high quality.
Mini and special tyre appearance looks more fashionable.
Made from aging resistant material, it can be used for a long time.
With anti-skidding lines and massage function, it is effective to stimulate the acupuncture point of hand.
Small and lightweight, which is easy for you to carry anywhere and anytime.
Simple squeeze exercise equipment to strengthen your hands.
No noise to bother you or others when using.
Beneficial to health: developing hand strength, increasing finger dexterity, promoting blood circulation, reducing stress and preventing joint stiffness.
Six resistance levels, includes 30lb, 40lb, 50lb, 60lb, 70lb, 80lb round hand grips optional.

Specifications:
Color: yellow, blue, green, orange, red, black (optional)
Weight resistance: 30LB(yellow), 40LB(blue), 50LB(green)
                               60LB(orange), 70LB(red), 80LB(black)
Material: rubber
External diameter: 80mm / 3.15in
Internal diameter: 36mm / 1.42in
Thick: 22mm / 0.87in
Item weight: 80g / 2.82oz
Package size: 9 * 9 * 3cm / 3.54 * 3.54 * 1.18in
Package weight: 81g / 2.86oz

Note:
1. Please allow 1-3mm errors due to manual measurement.
2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

Package List:
1 * Gripping Ring