• connecting rod: Inside is a rigid , wrapped with high quality the outside to pressure and slip.
• Hexagonal PVC nut with deepened thread design, prevent weight from sliding off during the exercise. Threaded ends with collars provide , secure
• Dumbbell Handle, due to their size and versatility, adjustable dumbbell of movement patterns to movement specific strength.
• Great choice: Dumbbell various sports and strength like arms, shoulder, , legs or back training.
• Make your dumbbell to barbell. Great replaces for your old dumbbell rod, effectively improve your strength training.Great for household fitness device use.

Set A: 2 Piece Dumbbell Bars, 4 Piece NutsSet B: 1 Piece Connecting Rod (Optional)