In the past getting the bottle open takes 2 hands, keeping track of the removable cap is always a challenge and then actually screwing the cap back on ... all while you have more important things to focus on! With the Aroma Topper just use your thumb to click it open and closed for a tight seal and no rubber gaskets to lose. Helps prevent spilling, staining and waste. The nose cone Easy to open with thumb and easy to close with index finger Click sound indicates sealed cap Helps prevent spills, stains and odors
Sizing Guide: Place top of bottle cap against circle to see which size will fit your aroma bottle.