[ONE 1 POSTCARD]  T-540 GREETINGS FROM SANTA BARBARA a California beach city POSTCARD [ ONE CARD ]   from Hibiscus Express  . .. [[ 6 " x 4" POSTCARD ]] .. .. from Hibiscus Express. ... ... //.. Our postcards are printed on 16 pt (360 gsm) premium sturdy quality cardstock. ..... //// ..... This is the maximum thickness allowed by USPS for a postcard to be mailed without an envelope.... Made in USA. .. from HibiscusExpress ....  .... Made in USA.