K-Tech Tech 3 Stabilizer is a gridlock stabilizer utilizing Mathews Harmonic Stabilizer and Harmonic Damper Technology. They are machined out of 100% 6061-T6 Aluminum. Includes 1 Harmonic Stabilizer and 2 Harmonic Dampers. Measures 3.60 inches and weighs 5.40 ounces with the Harmonic Stabilizer and 3.0 ounces with the Harmonic Dampeners. Color: Black.