Product features PETG square culture medium bottle/square bottle Bottle body material PETG material, environmentally friendly material, bottle cap material: HDPE The bottle body is as transparent as glass, with a light transmittance of 90%, and the bottle scale is precise and clear; Anti crack, anti drop, anti puncture, good plasticity“ The bottle body is square, making it easy to hold, store, and transport; The specifications include 30ml, 60ml, 125ml, 250ml, 500ml, and 1000ml; The chamfered design of the bottle cap ensures no leakage through strict leakage testing; No DNA/RNA enzymes, no heat source, no endotoxins, compliant with USP Class VI standards; Operating temperature: -60 ℃ -77 ℃ After irradiation sterilization. “