The April PETS+ Sample Box, sponsored by the Pet Sustainability Coalition in honor of Earth Day, contains a little bit of everything, from toys to toppers. It’s a testament to the popularity of the PETS+ Sample Box program, a must-have for retailers and advertisers. Every box has sold out and we’ve added to our list of retailers who want to participate — so far, over 700 stores have joined! Click through to see what was in the April box. Interested in becoming a member of the program? Retailers can sign up at petsplusmag.com/samplebox. Advertisers can contact desiree@smartworkmedia.com to learn more.