Description:100% Brand new and high quality.Light weight, durable, easy to carry.Made of high quality and aging resistant material, durable to use a long time.It can develop hand strength, increase finger dexterity, promote blood circulation, besides,deflate tension when working under stressful situations.Color:green,dark green,light green,black,dark gray ,light grayPower:green/black-11lb;dark gray/dark green-8.8lb;light gray/light green-6.6lb