Maximize the versatility of your dumbbells with the FitRx X Bell System! Simply attach your dumbbells to the X Bell System to instantly open up a dozen new workouts. Easy-to-use screw-down locks clamp onto most dumbbell weights to turn them into a straight barbell, macebell, or kettlebell. It’s durable and sturdy too, supporting up to 200 lbs of total max weight. From squats to deadlifts, to bench pressing and barbell curls, the X Bell System unlocks your dumbbells’ full potential!