Multifunctional dumbbell set, dumbbell barbell kettlebell and push-ups,free switch. The surface of dumbbell is wrapped with environmental protection material,which will not damage the floor. Barbell connector fits the curve,20mm thickened high quality foam,giving you a comfortable exercise experience. Easy to assemble and disassemble,it only occupies 0.2 square metersand saves space. If you have any questions, please feel free to contact us, we will provide you with a solution within 24 hours!