Versatile and powerful, the 50 ml Classic Screw Top Jar is easily one of our customer favorites. Because of its 50-ml storage capacity, it’s the perfect jar for storing herbs, spices, homemade body butter, balm, or powder foundation—even on the go! But what makes this jar stand head and shoulders above all others is its design. Apart from its airtight lid, it’s made with lab-designed ultraviolet glass, which effectively filters sunlight. This glass jar blocks out damaging rays while allowing sanitizing rays to nourish your products. So this type of glass doesn’t only offer aesthetics—it also possesses the power of ultimate preservation. • Airtight, smell-proof, & light-filtering: world's best ultraviolet glass jar with bpa-free plastic lid • the perfect size and shape: a versatile container—great for herbs, spices, and cosmetics.