We add new test backdrops each week. All test backgrounds in this collection are offered at a 50% discount and free shipping, in exchange for in-use photos of the backdrop. The photos must be posted to our Facebook group within 15 days after getting the backdrop. Each tester can test a maximum of 2 at one time. Purchasing the test backdrops means you agree to share the photos in our Facebook group and provide us permission to use them on our website, social media posts, and advertisements. Please send us your website, facebook homepage, or ins homepage to get the opportunity to test our backdrops.