The Nevlers 4 Oz. Blue Glass Toiletry Bottles with Dropper Caps are ideal for storing oils, cosmetics or natural and homeopathic remedies of all kinds. These leakproof glass bottles come with silicone topped pipette covers, a funnel for effortless and mess-free filling, labels and an erasable glass marker, so you can easily identify the contents of your bottle and a brush for easy cleaning. These reusable bottles were manufactured using high quality cobalt blue glass, making them great for gifting or traveling and ensuring your bottles' contents are protected from harmful UV rays. - 4 Oz. Blue Glass Dropper Bottles. - UV resistant to preserve the freshness of your bottles' contents. - Leak-proof seals making them a great option for traveling and gifting. - A bottle brush will help get passed the narrow bottle neck for easy cleaning. - Labels facilitate easy identification of your liquids, even after they are bottled.