Elufly 3ml Empty Scientific Sample Amber Essential Oil Perfume Glass Bottle Yellow Cap Roll on Bottles 30-100 Units (30) Size:1.5*3.9CM(0.585*1.521Inches),volume:3ML,pack of 30 to 100 units, if you choose 100,means you will get 100 sets yellow cap roll on glass bottles Great Size For Travel, pocket or purse, come with cap, save your oil ,and you do not need to take your big and heavy bottles which were full of face and body care liquid into your travel bags, make you more relaxed and comfortable Afraid will be broken, so we will send more 1-2 units for free, and will come with a 2 ml plastic dropper like the image show, also come with a a Elufly brand 5 gram heart shaped clear plastic cosmetic containers Use Roll on Bottle with Essential Oils, Perfumes, Lip Gloss, liquid and more, some of customer use it as a DIY decor bottles for their home bar And if you like DIY unique hybrid body care oil or perfume, those bottles will work very well for you, most of customer use it on they scientific test or student scientific subject as a sample bottles