Paper Upgrade Add-On (120 lb → 240 lb Ultra-Thick)
Do not purchase this listing by itself. This is an add-on only to upgrade your stationery from 120 lb Mohawk Eggshell to 240 lb ultra-thick Mohawk Eggshell (non-bend, heirloom-weight).
Because Etsy won’t allow this upgrade as a variation on the main listing, you’ll purchase your stationery in the regular listing first, then add this listing to cover the price difference.
Price difference example (set of 10):
120 lb (10) = $39
240 lb (10) = $53
This add-on = $14
Quantity rule: Your add-on quantity must match the set you’re upgrading (ex: upgrading 10 cards = purchase one $14 add-on).