This beautifully sewn, padded, cloth carrying case holds 30 bottles from 5 ml (1/6 oz bottles) up to 15 ml (1/2 oz). It has a pocket on the bottom which perfectly fits the "Quick Reference Guide for Using Essential Oils" and padded, cloth dividers between each bottle to keep them from knocking against each other. It also has a handle on the top to keep your oils upright when being transported. Holds round bottles up to 2 5/8" high.