Bite valve switch

Sucless through the USD FDA good grade, European EN71 part3, European"FGD 2002/72/EC","BAP","LFGB" and not contain natural rubber test.

Our patents isZL:2005 2 0147331.4 , ZL:2005 3 0165508.9,ZL:2011 3 0133084.3,ZL:2011 2 0170770.2,ZL:2005 3 0165509.3,ZL:2011 3 0133075.4,ZL:2011 2 0170769.X,ZL:2011 3 0133082.4

Suit for this  water bladder series: