Some USB ports may pose a challenging fit for this product but overall, they are a well thought out solution for preventing dust intrusion.
Good idea, poor construction. Simple, it does not fit. Tab is too thick. Too cheap to send back, perhaps some time with some sand paper will fix-it.
I ordered batteries and a set of test leads. I received them within three days of when I ordered them and I got a great price. Fast service and a great price - what more could you want.