This oval shape hand power grip ring is designed with four grooves on the surface for better fingers feeling. When squeezing it? it is stretchable and expandable. If you want to increase your hand and forearm muscle? it is an effective exercise for you. Here we have four different grip forces in four different colors for your choice.

Features?
High-quality and durable for it is made of aging resistant material? can be used for a long time.
Special design with four grooves on the surface for better fingers feelings.
Small and lightweight? so you can carry it with you anywhere and anytime.
Portable and easy to use? just squeeze it hard.
Stretchable and expandable.
Quiet? it will not make any noise to bother others around you when using.
An excellent training tool that strengthens your hands? wrist and forearm.
Environmentally-friendly for its non-poisonous material.
Function as an extremely effective finger-hand-forearm strength and endurance trainer or a tool for reducing stress.
Suitable for children? teenagers and sport lovers when at home? in the office? in the car or walking.
Four resistance levels? includes 20lb? 30lb? 40lb? 50lb oval hand grips optional.
Four colors optional.

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.

Specifications:
Material: Silicone
Shape: Oval
Color: Yellow? blue? green? orange (optional)
Weight resistance: Yellow (20LB)? blue (30LB)? green (40LB)? orange (50LB)
Item size: 7.5 * 6.5 * 1.8cm / 2.95 * 2.56 * 0.71in
Item weight: 43g / 1.52oz
Package size: 9.5 * 8.5 * 2.5cm / 3.74 * 3.35 * 0.98in
Package weight: 45g / 1.59oz

Package list:
1 * Hand power grip ring