The TurfCordz with Handles with Safety Corded Tubing is a variation of the TurfCordz with Handles.?This product includes the exclusive Safety Cord Tubing.?Users can exercise more freely with the nylon limiter within the tube providing an extra level of protection from over-stretching and breakage. The TurfCordz with Handles with Safety Corded Tubing features a safety cord spanning the length of the latex tube. Available five resistance levels. Blue has 14 - 34 lbs if resistance.