Ahead Drumsticks are truly ahead of their time. Ergonomically tuned handle diameters. Precision alloy core provides negligible weight and balance variations. Super-hard replacement polyurethane covers protect both sticks and gear. Vibration-reduction system reduces hand fatigue. Aluminum drumsticks with replaceable nylon sleeves.Ahead Drumsticks Features:Ergonomically designed handle,Precision alloy core,Super-hard polyurethane cover,Vibration-reduction system. Model JJ1 SpeedmetalDiameter: .540Medium Taper (MT)Length: 15.69"Weight: 52g