Big Size Detachable Centrifuge Tube Racks for 10ml, 15ml, 50ml, 50-Well

Okay, so I don’t have test tubes. But it is absolutely perfect for holding my water pipe bowls!

It's rigid/sturdy. I bought two racks to store cytology specimens in my lab, stored in the 30mm/larger wells. The wells aren't tight-fitting, so putting in and taking out tubes doesn't require both hands. Overall a great rack for the price, and will most likely purchase more if needed.

Purchased to help fill extra extraction tubes and small vials for biology and chemistry activities with my Granddaughters. Did the job and folded compactly for travel.

Perfect for my super science test tubes.

There great for all my centfuge tubes