https://www.mazuri.com/Home.asp?Products=1&Opening=4

go to dealer locator. you should be able to find something. I was having the same problem once my rat supply started increasing. I was going to petco and spending an arm and a leg on 5lb bags of lab blocks, but went to mazuri and found a feed store about 15min away from worked out great. Look for farm feed stores they usually have it.