Here's a great deal on a set of 5 of the most popular Erlenmeyer Flask sizes.
Includes 1 each of the following sizes:  50 ml, 150 ml, 250 ml, 500 ml, 1000 ml.
Printed with double graduations. Accurate to within 5% of rated capacity.
All made from high quality heat resistant Borosilicate glass. Uniform thickness with a heavy beaded rim.
( Rubber stopper stoppers not included )

Erlenmeyer Flask Rubber Stopper Sizes
 
10 ml # 00
25 ml # 2
50 ml # 2
150 ml # 5
250 ml # 6
500 ml # 7
1000 ml # 8
3000 ml # 10