These glass dropper pipettes have an attached rubber bulb to each and fit into Barnes Bottles. They are Straight-Tipped and sold as a pack of 12.
The Barnes Bottle has a 30 ml (1 oz) capacity. It is often used with indicator solutions and stains. It has a square-shaped flint glass bottle with a straight tipped glass pipet and 5ml red rubber bulb. The rubber dropper forms a cork type seal. Sold in a pack of 12.