The small hole design on the cap makes it easy to control the using amount. Featuring compact size and light weight, it is great for home use or for traveling use. The travel storage bottles are made of premium plastic. There are 4 sizes of the product to choose from: 20ml, 30ml, 50ml, 100ml. It is suitable for a wide variety of items such as lotion, cream, cleanser, toothpaste, sunscreen and other products.