Features: size: Speedmetal JJ1 length: 15,69" (39,85 cm) diameter: 0,54" (1,37 cm) medium Taper wall thickness: 0,8 mm weight: 52 g replaceable covers, tips and rings cover: Medium Taper Cover alternative covers: Woodtone Medium Taper, White Medium Short Taper tip: 5A/7A Tip, Delrin alternative tips: 5A/7A Secret Artist Tip, 5A/7A Mini Ball Tip, 5A/7A Black Tip blend ring: RGB5A 50 % less shock through "VRS" (Vibration Control System) last 6-10 times longer according to manufacturer high rebound ergonomically tuned handles price stands for one pair