Pkg (10) 10 ML Plastic Syringes 3-1/3" Long These small plastic syringes with nozzle caps were made for squirting oral medications into the mouths of babes Each is 3-1/3" long x 5/8" dia with a 1.5mm ID and a 4.5mm OD, and is calibrated to measure 2 tsp in 1/2 tsp increments or 10mL in .2mL increments.