Formerly Safe Step Pro Series 570 Select Blend Blue. Highly visible blue crystals help you apply this ice melter evenly and efficiently, saving both time and money. The unique blend of products in Pro Select Blue offers superior melting power and doesn't stain carpets or floors. Melts ice to 0°F/-18°C. Easy-to-see blue crystals for efficient application. Non-hygroscopic so won't harden or clump in the bag.