The carrier should be ok for a rabbit. Make sure there is enough room for the bun in there of course, you don't want it to be TOO small. Check the carrier occasionally for possible rips and tares. I had that exact same one and the bottom ripped on me- I did not see it and one of my rats slipped out.

The cuddle cup is also ok for a rabbit. If it gets chewed up and ripped up (my rabbits would destroy it), get rid of it and get a new one. Make sure it is 100% cotton so if some of it gets ingested it will be safe.

The harness is fine too. Don't leave it on the bun when it is not supervised.

The dish is a ok.

The treats are a little questionable. They are not HORRIBLE but they are not the best. All commerical rabbit treats should be avioided if possible, they are very sugary and have no nutritonal value. Treats (like certain fruits and veggies) that healthier and benefit the rabbit should be given in place. Just make sure to give the rabbit a couple (meaning 5 pieces and under)- do not give it too many.