The tight threading can prohibit any leakage, keeping the air and other contaminants out.A clear body enables you to see the volume and the color of the liquid, and conveniently pack your skin care products when traveling and on business trips.Lightweight and easy to carry, the flat cap design makes it easy to open and close, and the stand-up bottom allows easy storage.These refillable cosmetic sample packing bags can be used to store hand soap, shampoo, body lotion, shower gel, facial cleanser, and cream.A refillable design, the lid is detachable, the opening is large, it is very easy to refill, and it can be reused after cleaning