Through Authenticate 
// Features:
*Multi-function exercise tubes, which can offer multi resistance combinations.
*This can be used in different occasions as resistance tube, expander and door attachment.
*This is easy carry and adjustment resistance tube.
*Produced by Taiwan manufacturer with good quality.
// Specification:
Tube (TPR): 12mm*2.5mm*70cm (4pc)
* Hand Material: PVC* Tube Material: TPR
* Round Center Material: ABS
*Door stopper Material:
NBR. PP weave rope
