2 _* c4 S; v: ?) N' _ n/ O7 m5 A( S看到一个评论,不是太好哇: $ _/ [" U/ j" {# |8 v* c4 o) b ! q" |8 R: c; z' _I used this 4 times (2 car tires, 2 bike tires). On the 5th time, something went wrong inside the valve connector. Now it can only release air. Will never pump again. All I can do now is give it to recycling.