Some brands set their store cards as fixed denomination cards meaning the brand only offers specific amounts ($25, $50, etc) while other brands allow for variable denominations ($10, $22, $105, etc). meaning the brand offers any whole number as an amount between $1 to $1,000.
On the Wishlist Marketplace:
If you see a gift card brand with a drop-down menu, it means that brand is limited to fixed denominations. Please select an amount from what is available.
If you see a gift card brand with a fill-in box, it means the brand is open to variable denominations. Please input whatever amount you desire.