They are held every day to ensure that they are friendly and social. It is $15 per rat or $25 if you would like two, if you do not currently have a rat they must go in pairs. Rats are social animals and need playmates. Please email with a picture or description of the cage. Aquarium's are not suitable homes for rats at the bare minimum you need a cage topper. These are pets only! They will be seperated at 4.5 weeks and ready to go home March 9th. Please contact me if you are interested.