Review on 100 Pack Of Large 14.5X19 Metronic Black Poly Mailers - Self-Seal Shipping And Packaging Bags For Small Businesses, Boutiques, And Clothing - Ideal Shipping Envelopes For Secure Deliveries by Lillian Rodriguez

Spot on dimensions. Instead of counting if you want to check how many you got, an individual bag weighs 0.7g. If you have a kitchen scale large enough to support the whole lot without any sides resting on the surface, you will have 70g total if all 100 are there. And fyi, if shipping USPS, make sure the empty bags longest side is no more than 18". Any more and you pay parcel size. (just fold it at 18" and make sure you still can when it's full).No issues I'm aware of from my recipients. Would buy again. No point buying smaller when you can fold it in itself or tape a fold down to make it a smaller size.