500 Small Disposable Paper Mouthpieces for T-20 and FE-12-1710 Spirometers - Please Confirm The Size You Need - These are **NOT Returnable**

描述

Product dimensions: 1 1/4" long (3.175 cm), 1 7/16" circumference (3.65 cm), 3/8" diameter (.95 cm). **Please confirm this is the size you need. These are not returnable.**