This 30ml dropper is the ideal size for aquarium maintenance since it is 28cm long and its opening (at the bottom) is 0.5cm wide. It can be used to pick up small fish fry, detritus, etc… as well as dispense liquids (e.g. liquid fertiliser, medical liquids, etc…).
The dropper is made of a top rubber part (circa 8cm in length) and a long plastic tube (circia 22cm in length).
The product in stock is only available with a top part that is black in colour.