This mascara tube is safer to use because it is BPA free, not leak,convenient to carry,compact and lightweight,fit easily in your makeup bag. Use these bottles to store your castor oil and enjoy effortless application with the included wand; The lip on the top of bottle lets you wipe off excess oil with ease. The eyelash brush bottle can be applied for eyelash and eyebrow serum, suitable for travel and business trip. Refillable Cosmetic Container,Easy to clean. Comes with Leak proof internal stopper. Containers with rubber inserts: each tube has a rubber insert at the opening to keep airs out and prevent unwanted leaking, thus to maintain the quality of the oil, mascara, lip gloss and more