This attractive glass bottle features a thick, square body and a red rubber stopper cap with built-in glass eyedropper. It’s useful for a wide variety of studio tasks, like diluting ink with a controlled volume of water or pre-wetting dry watercolor pans. It’s quick to use because there’s nothing to unscrew, but the rubber stopper closes tight to prevent spills.

Holds 30 mL (1 fluid ounce). Made in India.