Thank you for viewing! (*^-^*) The hook will be random. If you would like the Usa-Dan M, please comment. ○ Can be fixed in your favorite place with the hook. ○ If you have a rabbit, they can do their favorite digging, which helps with lack of exercise and stress relief. ○ You can spend time safely without worrying about the Usa-Dan slipping. ⚪ Why not try it once for a rabbit that is scared and doesn't get on the heater? ○ Can be washed. 〈Size〉 Approximately 40cm x 28cm 〈Material〉 Polyester ※ Heater not included! ※ Thank you for your consideration.