Package Size: include 6pcs Straight Tip Glass Droppers and 10pcs curved tip Measured Dropper.1 ml capacity, 4 inches long, glass pipette length: 3.05 inches, rubber bulb length: 1.2 inches.

Markings: The pipette dropper has 0.25 ml increments and 0.25 ml, .50 ml, 0.75 ml and 1 ml clear lines, allowing easy and accurate measurement of liquids.

Built to last: High quality glass pipettes and sturdy rubber bulbs make these droppers great for repeated use.

Easy to use: the glass is easily use between oils by a little soap and water; The little rubber piece on top pop's off for easy use and pop's right back on pretty easy.

Dropping Pipettes made of high luster glass and durable rubber bulbs, clear color provides good observation during operation, make drops precise; washable and reusable, better than plastic pipette.

Oil droppers with a clean brush, easy to clean, pinch the rubber cap to let inside air out, release to fill liquid, and pinch to let the liquid out. The black rubber caps can be removed and then rinse glass pipette stems with warm water. they are disassemble, washable and reusable.