This is a perfect mini size hand strengthener designed with O shaped? especially for youths and children. Small size and lightweight? so children can carry with anywhere and anytime. It can develop serious hand and forearm strength. Also? we have three different colors in three different weight degrees for your choice. No more waiting? buy one for you child.

Features:
High-quality and durable for it is made from aging resistant material? can be used for a long time.
Mini and cute O shaped look.
Small size and lightweight? easy to carry at anywhere and anytime.
Four concaves on the surface? just fitting for kids' hand comfort.
Simple squeeze exercise equipment to strengthen your hands.
Quiet? it will not make any noise to bother others around you when using.
Environmentally-friendly for its non-poisonous material.
An extremely effective finger-hand-forearm strength and endurance trainer.
Beneficial to health: developing hand strength? increasing finger dexterity? promoting blood circulation? reducing stress and preventing joint stiffness.
A perfect gift for your lovely kids and youths.
Three resistance levels? includes 20lb? 30lb? 40lb round hand grips optional.
Three 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: Round
Color: Light green? light yellow? light pink (optional)
Weight resistance: Light green (20LB)? light yellow (30LB)? light pink (40LB)
Inner diameter: 2.5cm / 0.98in
Item size: 6 * 6 * 2cm / 2.36 * 2.36 * 0.79in
Item weight: 41.5g / 1.46oz
Package size: 8 * 8 * 3cm / 3.15 * 3.15 * 1.18in
Package weight: 44g / 1.55oz

Package list:
1 * Hand power grip ring