[cypher]

If you laid the branch almost flat it would be safe (the wood itself is safe & no problems with chewing) but do bear in mind the size of these, even the smaller ones are quite big so unless you have a very big cage/tank in mind then you would probably be wasting valuable floor space with something that will most likely be of little interest to a robo, they are nice in a large natural set up but probably not top of the list of favourite things for robos!