VIBRA-COLOR KEY TAGS FEATURE BRILLIANT, FULL-COLOR ART GRAPHICS AND UNIQUE OPTIONS FOR VARIABLE DATA PRINT AND PERSONALIZATION. FULL-COLOR, MOBILE BRANDING PLATFORM. HELPS BUSINESSES RETAIN, ACQUIRE AND EDUCATE CUSTOMERS. FREQUENT USE GENERATES THOUSANDS OF AD IMPRESSIONS OVER LONG PERIODS. EASY AND ECONOMIC TO PACKAGE AND DISTRIBUTE OR MAIL. 1.625" H X 2.125" W