Dash bottles, Bitter bottle, Angustora bottle

Bitter bottles are siphon bottles with a spray cork closure for dosing small amounts of bitter liqueurs such as Angustora or orange bitters to refine cocktails. The term "dash" describes the dosage of about 3-4 drops. This is the amount that is automatically obtained by tilting the bottle, eliminating the need and time to measure. If a larger amount is required, the bottle must be tilted several times. Are you looking for Speedbottles ?