made of polypropylene
break-resistant
standing on solid base
with tightly closing screw cap made of polyethylene (PE-HD)
the rounded bottom facilitates taking out smaller tissue samples
for enhanced protection against leagage during transport the bigger containers can accommodate smaller ones (e.g. 20 ml fits into 35 ml, 35 ml fits into 50 ml, 50 ml fits into 100 ml). This enables a double-walled protective mailing