Anyone willing to give feedback on our direct mail postcard?

We're a direct to consumer ecommerce company and after not seeing a good ROI on digital marketing, we're testing the waters with a direct mail campaign

We've got our 6" x 9" postcard designed and we're looking for some feedback on it from people who don't know anything about who we are or what we do. (I.e. is it clear what we're selling, is it appealing, etc)

Photo Links:

Front Side

Back Side

Mock Print for Scale

Thanks!