Details: √Convenient to use Transparent tubes make it easy to see the remaining volume of cosmetics; Each tube has a rubber insert at the opening to keep airs out and prevent unwanted leaking; The lip on the top of bottle lets you wipe off excess oil with ease; You can easily move castor oil to the tube with the funnels. √Easy to carry Because of their size and lightweight, you can carry them for make up. Good for travel, business trip or daily usage. √Wide Application Good choices for beginners to practice, daily use or makeup artist makeover. Perfect to refill your castor oil, eyelash growth oil, mascara eyelash cream or other products you want. Usage： 1.Clean them. 2.Use a funnel for filling. The trick is to not overfill the container, filling only 4/5 of the way, leaving plenty of room for the stopper and wand. 3.Put the insert at opening of the bottle. 4.Tighten the bottle cap. Specification: Capacity:10ML Material of Tube: PET Material of Cap: ABS Size of empty bottle: 105x15mm/4.13x0.59in(LxDia) Length of funnel: 40mm/1.57in Length of insert: 14mm/0.55in Weight:100gPackage includes: 10 x Empty Mascara Tubes 10 x Stoppers 2 x Funnels NOTE: You can disinfect them by medical alcohol of 75% concentration before using (Don’t use boiling water). * If you are not happy with any product for any reason by GTHER, please do not hesitate to contact us. * In every customer relationship, GTHER strives to be a trusted partner and seek to achieve 100% in customer satisfaction.