In February I chose a seatbelt and a laser pointer, and as a special add on they also threw in peanut butter treats. I fully believe that pets need to be securely restrained in vehicles when driving. He has outgrown his small travel crate so I have upgraded to this seatbelt. you do need a harness for this to secure to. He loved the peanut butter treats and I can't wait to test the laser pointer on my BF's cat. Overall I like that you can pick out your items in PetBox however, BarkBox seems to get you a better deal and quality of toys.