Span America Convoluted Pad, 1 Each Single Button Walker 5v instruments heads * Adjustable The unfolded towel measures 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 Fits knuckle width up to 3 1 4 * The patented IMAK SmartGlove helps prevent and relieve wrist pain including carpal tunnel syndrome * The SmartGlove encourages the hand and wrist to remain in a neutral position during work * It features flexible support for full use of the hand and breathable cotton Lycra© for all day comfort * The ergoBeads© pad located on the underside of the wrist cushions and protects * Helps prevent and relieve carpal tunnel syndrome * Increases comfort and circulation * Ensures ergonomically correct wrist position * Cushions and protects the underside of the wrist including the pisiform bone * Reversible to fit left or right hand Compression rolled for efficient storage Comfortable