Thera Band 50 Yard Black Wall Transformers 15 x 6 x 7 Chilling Units Freezer 15 x 6 x 7 Black Alligator * Features two zipper pockets an anti bacterial liner and 3 position lock * All Bags include initializing of up to 4 letters in gold leaf at no charge * 5v instruments heads * Adjustable rheostat control * Safety switch to prevent accidental draining of battery * Metal head connectors for durability * Direct plug in style * 100 130v 50 60 Hz * Model WA71000C uses 3 50 YARD DISPENSER BOX * XX Heavy Black * A special system of progressive resistance * Can be used for both the upper and lower body muscles * Approved for use by the APTA *