Hi i am having an issue with understanding the shipping weights. I sell glasses and on the product page it says to add product weight. Every pair of glasses comes with a case,cloth and a small box for it. I am just wondering should i have the product weight on it own ( just the glasses) or with all the extras added onto it(case,cloth,box).
My next question is if someone orders 3 pairs of glasses and i put all three in one mail bag how does it know to charge for shipping of three frames and the mail bag especially. I ask this because the mail bag size will differ between amount ordered.
Thanks.