Good quality, but can't be used with all of our Onesies from differing manufacturers.  Contacted the seller, who did write back, but tried to give us the "they work with everything" speach, like you'd expect.  They did offer to take them back, but the shipping we'd have to pay wouldn't make sense.  We aren't stupid and tried to make them work, but the snaps really are different on two of them.  Our Onesies are brand names bought at places like Wally's World, so they aren't exactly fringe brands.