As an owner of a Roborovski hamster, I do not recommend it. The holes are smaller than a toilet paper roll, making it completely unsuitable for hamsters. It does not fit hamsters unless they are up to 3 weeks old, still small in size, and there is a high risk of them getting stuck even without full cheeks of food in the holes, and you cannot take them out afterwards. Prefer something else with larger holes or better yet, make a DIY one. The only use that may be useful is to put treats inside, either snack bars or a mix of dried fruits and nuts, but keep an eye on it constantly in case the hamster tries to squeeze in.