[Drosophila] correct microcentrifuge tubes for blue plastic pestles

[Stacy Marie Mazzalupo]

Dear Fly Community,
Many years ago, one could purchase the standard 1.5 microcentrifuge tubes from 
VWR, Fisher, whoever and they would be a perfect fit for those blue plastic 
pestles used to homogenize flies and fly parts.

However, lately the tubes our lab has been getting are leaving a gap at the 
bottom. Can anyone recommend a tube that works well, and supply the company and 
catalogue number?

Thanks,
Stacy