Vengeance 22 or 24 gram 90% Tungsten alloy Vengeance Darts introduce our first V-Tech Control three-dimensional technology, the smartest, most biomechanically precise darts ever made V-Tech Control features 7 Degree power accumulator opposition force design dynamics for maximum grip torque and release flexion V-Channel technology engages the full range of wrist and hand for ultimate radial control and coordination of release dynamics Vengeance space age looks are beautifully designed and exquisitely crafted