Vintage Weight Watchers Exchange System Food Scale Plan Portion Control Program TT20. Very Good Gently Used Condition. Does show normal wear for a daily use item (for example, minor surface scratches and what appears to be two small spots touched with something hot as shown in photo #9). Includes 1 Exchange System weight (Ounces) card. Appox. measurements shown in photos #4, #5 and #6. From a pet friendly and smoke free home.