Corning Pyrex #4980-250, 250ml Narrow Mouth Erlenmeyer Flask with Rubber Stoppers (Pack of 12)
- Package contains: 1 each 50ml 150ml and 250ml glass conical flask and 1 cleaning brush. Each flask has a matching glass stopper, which is more suitable for the analysis of volatile substances and experiments that cannot use cork or rubber stopper..
- Size (Diameter X Height): 50ml: 5.0cm(1.96in) x 9.0cm(3.54in).
- Material: these flasks of great quality are made of 3.3 Borosilicate glass, with high chemical durability and low thermal expansion, which can withstand the high temperature and thermal shocks. Microwavable and autoclavable..
- Features: thick glass, heavy duty rim, smooth surface, wide stable base, fadeless white graduation..
- Uses: can be used for professional scientific experiments and classroom labs, also suitable for candy storage, plant propagation, home decoration and party supplies for such as Christmas, Halloween, kids birthday, wedding, science themed party. Three different sizes to meet different needs, convenient to use..