WonderLister – the best eBay lister software which supports listings with Compatibilities (aka Fitments). It lets you create listings with Compatibilities. Ability to define compatibilities using K-Type is also supported by WonderLister on eBay marketplaces that support this. This feature enables your potential buyer to figure out if the item you are selling will fit in their car / boat / motorcycle / Truck etc. Being able to define auto parts compatibility is a huge plus as your potential buyers can determine if the part you are selling is right for them.