... 1 material,Plastic rope+Cotton rope 2 weight,90g 3 Length,2.8M Digiyal SKIP1 material,pvc Sponge+Cotton rope2 ... , only 1 minute, suddenly leaped in 3 days, can jump in 3 minutes, after 3 months can jump on 10 minutes a ... is the jump movement against obesity, high blood pressure, dyslipidemia, prevent the feasible mode, and is also a good exercise aerobic endurance sports metabolism.No, what is the ...