In medium microwavable bowl, microwave caramels and milk uncovered on High 2 to 3 minutes, stirring every 60 seconds, until melted and smooth. Pour evenly over bar. Sprinkle with pretzels and remaining 1/4 cup pecans, pressing slightly into caramel. Sprinkle with salt. Cool about 1 hour 30 minutes or until caramel is set. For bars, cut into 4 rows by 4 rows. Store covered in refrigerator.