FitWhips.com - Jump Rope - Premium Quality, Adjustable Speed Rope - Includes Free Book, Lifetime Support, Carry Case - Best for Cross Fitness Training - Boxing - WOD's - MMA - Exercise and Fitness SAFE CARDIO - Jumping rope is proven to be a safer alternative to high impact exercises that wear out your knees. NO MORE TANGLED ROPE - Our PVC-coated steel whip chord is tangle-proof, lightweight and perfect for high-intensity training! FREE TRAINING BOOK INCLUDED - You get our best-selling book FIT WHIP IT! absolutely free! Packed with speed rope routines and written by Celebrity Trainer James Villepigue CSCS. SHREDS FAT FASTER THAN JOGGING - One hour of jump rope can burn up to 1000 calories! EASILY ADJUSTABLE TO FIT ALL HEIGHTS - Our easy-to-use hand screws accommodate adults and children!