Gross weight 1.23 KG / 1 KG
[material] glass fiber + rubber
In the red elastic intensity, 1 6 meters long
Blue high strength elasticity, 1 6 meters long
Green, 1 meter long, suitable for teenagers, ms recover strength training, the vibration frequency.
The product description
Between glass fiber and rubber, handles cylindrical soft high elastic rubber handle;
Fly force through the vibration of the soft slow tension, increase muscle strength, improve muscle arrangement, make back muscle as a whole to work properly, so as to support the spine exercise routine.