1.Material 100% silicone
2.Any type is ok
3..Any colors available

1.Suit  of gifts, premiuns  and  accessories

2.Execllent  resistance

3.Stretch,collect, they never change  the chapes

4.Function: improve blood circulation ,balance the  body current to ease  the  disorder  cells  to  achieve  rapid pain  relief  to  alleviate fatigue  and purpose