The disk diminishes as time elapses until no red is visible on the timer face

Individual Bin Dimensions: 4 1/4"W x 5 3/4"H x 3 3/4"D

This unit allows for testing pure tone audiometry in a wide range of settings such as standard threshold testing or a sweep test with user defined output levels for testing children

A single use latex free prove cover helps reduce the potential for cross contamination and is comfortable for the patient

Shark Tape Cutter Replacement Blades (10-ct) Rx Form The disk diminishes as time(10 Blades per Package) Replacement blade for Shark Tape Cutter will only work for the Shark Tape Cutter. Handle not included.