Innerloc’s innovative Blade Alignment Technology (BAT) allows for precise tuning of broadheads to your carbon arrows. The Carbon Tuner offers all the features you appreciate, now upgraded with durable .027" blades, BAT technology, and a stylish “Blood Trail” anodized finish. This is the ideal tuning solution for your carbon arrows, featuring a cutting diameter of 1 1/16" and available in a pack of three, each weighing 75 grains.