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It includes a pair of handles, a jump rope, and a pair of ball chains. Each handle has a recess and a cover. The ball chain has several ball units linearly connected. This ball chain has a first fixing portion to connect with the jump rope and a second fixing portion to secure with the handle. The b

It includes a pair of handles, a jump rope, and a pair of ball chains. Each handle has a recess and a cover. The ball chain has several ball units linearly connected. This ball chain has a first fixing portion to connect with the jump rope and a second fixing portion to secure with the handle. The ball chain is pretty pliant and easy to deform, so that the rotational friction and drag between the jump rope and the handle during high-speed rope jumping can be significantly minimized.

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1. A jump rope device comprising: a pair of handles, one end of each handle having a recess, a cover being disposed on said recess, said cover having a channel; a jump rope, two ends of said jump rope being disposed with at least one ring-shaped element; and a pair of ball chains, each ball

1. A jump rope device comprising: a pair of handles, one end of each handle having a recess, a cover being disposed on said recess, said cover having a channel; a jump rope, two ends of said jump rope being disposed with at least one ring-shaped element; and a pair of ball chains, each ball chain having at least five linearly connected ball unit, each ball unit including a ball-shaped end, a shell-shaped end, and a linking rod for connecting said ball-shaped end and said shell-shaped end, said shell-shaped end having a cavity for pivotally receiving an ball-shaped end of an adjacent ball unit and a small opening for allowing said linking rod of said adjacent ball unit to protrude out, one end of said ball chain being disposed with a first fixing portion to connect with said ring-shaped element of said jump rope, the other end of said ball chain being disposed with a second fixing portion for fixing in said recess of said handle. 2. A jump rope as claimed in claim 1, wherein an inner diameter of said channel of said cover is slightly larger than an outer diameter of said shell-shaped end of the ball unit, and said inner diameter of said channel of said cover is smaller than the outer edge of said second fixing portion of said ball chain so as to allow said second fixing portion to be locked and secured in said recess.