Ebay lists my book as quantity as 1. But we have many. How do I edit the number?

[matgrano_34]

my book is listed as "quantity 1" 

but we have many. How do I edit that number? Thx

[susanb1872]

Yes-but next to that "quantity 1" is says more than 10 available. I think the "one" is for the buyer to see since they usually buy only one but they can change the quantity to a different number if they want.