Antibiotic sensitivity disks, penicillin, 10 units, 50/vial

We get it. Science can be messy. But Home Science Tools' products and service can handle it.

Our products are durable, reliable, and affordable to take you from the field to the lab to the kitchen. They won't let you down, no matter what they're up against. Whether it's (over)eager young scientists year after year, or rigorous requirements that come once-in-a lifetime.

And if your science inquiry doesn't go as expected, you can expect our customer service team to help. Count on friendly voices at the other end of the phone and expert advice in your inbox. They're not happy until you are.

Bottom line? We guarantee our products and service won't mess up your science study—no matter how messy it gets.

Questions? Get in touch with our Customer Service team.