Introducing our 250ml 1oz factory supply black boston glass bottles with dropper for essential oils. These high-quality bottles are perfect for packaging your essential oil creations in a sleek and stylish way. Each bottle features a dropper for precise application and is made from durable black glass to protect your oils from sunlight and heat. We are a factory dedicated to providing our customers with premium quality glass containers at the best prices on the market. Order now and experience the difference for yourself!