Heavy Rope 4 Lb

Filled with sand and made with non-marking rubber
The weight is distributed proportionately from handle to handle; in many other jump ropes the weight is concentrated in the handles, not he rope itself
Strengthens hand and wrist muscles in addition to being a great cardio workout
Improves upper and lower arm strength
Improves shoulder strength and flexibility
Strentgthens the rotator cuffs (important for any throwing activity, e.g., quarterbacks, pitchers, basketball players, etc.)