Disposable cardboard mouthpieces for Spiropet, Baseline, and Buhl Spirometers. Mouthpieces measure 1 1/4" (3.175 cm) long, 3/8" (.95 cm) in diameter, and 1 7/16" (3.65 cm) outside circumference. Quantity 1000 pieces.
Free shipping only in the contiguous United States.