Premium Quality: The shell of the atomizer perfume bottle is made of aluminum, the inside is glass, so you can use the travel bottles for perfume confidently | Portable Cologne Sprayer: 8ml/pcs, set of 4 different colors. Size 3.7x 0.9 x 0.9 inches. They are highly portable and barely take any space. With these you don't have to carry heavy perfume bottles with you not worry about TSA 3 oz requirements | Easy to Use: This travel perfume refillable bottle adopt cap-free design, you simply twist the top like a lipstick to expose the spray nozzle and press down to spray; And opposite direction to retrieve the nozzle. The twist up and down feature will prevent leaking and evaporating | How to Refill Perfume: You only have to pull the inside bottle up and out after twisting the spray nozzle loose, and use the funnel, dropper or perfume dispenser pump for easily refill, which makes the empty perfume bottles great for perfume, cologne, essential oils and mouth freshener | Widely Use: These refillable cologne dispenser bottles are lightweight with attractive appearance. The mini size spray bottles can be easily concealed in pocket, purse, bookbag or luggage. A good choice to take when you are traveling, dating or party