Made of BPA free glass, durable and can be reused again and again. Amber glass bottles provide a very professional display and are perfect for storing materials which are sensitive to degradation from light. Each bottle comes with a tight-fitting cap that is also fitted with a glass stopper for easier dispensing of essential oils and other liquids. Ideal for oil blends, serums, and also for storing industrial and laboratory chemicals. 1 oz size is TSA compliant and ideal for travel, gym, car, or home use. Set of 48 amber glass dropper bottles, 1.25" diameter x 4" H (with dropper inserted). These glass bottles are perfect for holding almost any liquid, and they protect your valuable essential oils, blends, and products from Damaging UV Light. Easily and convenient package, refill, and transport essential oils, perfumes, sprays, cleaning solutions, and any other type of liquid.