Not worth it
I do not recommend this tunnel. It is not really big enough for my rabbits (Although maybe I should have read the measurements more closely). It also has no structure to it so it flops over and even if I had given it to them I doubt they would even realise they are meant to go through it. It is also made of a very thin fabric which wouldn't last minutes outdoors. Perhaps it would work ok if you attached it to an indoor guinea pig cage, but I don't think it's worth it.
Not suitable for bunnys
I dont feel this is suitable for bunnies, i recieved one today and find it very small, it also flops around so bunny would just get stuck in it, i would reccomend for tiny rabbits or guinea pigs xx