Review on Refillable Reusable Plastic Bottles Yorker by Melinda Coleman

These bottles are great but the ones I've received are under 4 ounces (see comparison picture). They're a little hard to compress, which isn't a problem for me, but may be a problem for some. I originally bought these to sell products but I use them for my own hair oils as the size is smaller than expected. I've had them in my carry-on with no problems, so they're travel-friendly and don't leak.