It is all molded as a single piece with no welded parts, making it highly durable.
It can be sterilized by autoclave and stored in a freezer.
It sinks in water, so it can be used in an aquarium. Material: ResMer(TM)
Number of pieces (arrangement): 40 pieces (4 x 10)
Model number: 5970-0020
Color: White
Compatible test tube diameter (mm): φ20
Size (mm): 250 x 102 x 83
