3cda683c_s__and_Audio_Licenses___iStock__Extended_License
[Permitted use] Items for resale, including prints, posters, calendars, mugs, mousepads, t-shirts, games, etc. [Standard License] No [Extended License] 
Items for resale — limited run license required. Note: there are quantity restrictions dependent on the type of item
Stock Photography, Images, Videos, and Audio Licenses - iStock
Extended License