I am selling these adjustable single arms, the weight on one side is 4x(2.75 kg) and 4x(2.kg) plus a screw and a 1kg rod. The discs are cement. In total, one single arm weighs 20 kg. Single arms can be stacked as one large dumbbell, see photo. The price for everything is 50 euros. Only personal collection. If you are interested, please contact me by email: 11tomas22@gmail.com phone: 0904897592