ULAB Scientific Erlenmeyer Flasks with Blue Screw Cap, 34oz 1000ml, 3.3 Borosilicate with Printed Graduation, Pack of 2, UEF1021

Very Good ! I bought these for my mother who has Alzheimers. Good to stop bottles being knocked over due to the flared bottom, unlike other straight bottles.

Perfect for mixing cocktails!

I bought these for Agar/Liquid Culture work. Bottles are rated for high temp and pressure ie...autoclave/Pressure Canner & Cooker work. Bottles also have drip resistant lip on them. Essential for pour work in home or lab.

Los matraces desafortunadamente se rompen con el calor, no esta bien templados, considerando que el material es borosiclicato para laboratorio. No tienen durabilidad

Cette bouteille sert pour entreposer de l'acide nitrique. Ça fait la job!

I've purchased 3 different products from them so far (1x 500ml Erlenmeyer, 2x 250ml Erlenmeyer, 30MM Test tubes) and all of them have been high quality for super reasonable prices. I needed those 3 things to be autoclavable and they all have done just fine in my pressure cooker for over an hour and a half. Highly, highly recommend ULAB if you need any science ware.

Perfect for an application not requiring sterility. I used it to boil media in the microwave and the lid was nice to have. It did not seal completely so if you're going to store things long term you may want to plastic wrap the lid and neck. Glass is quality.