Magnetic bike computer with five function . Exercise bike flywheel 2.5kgs. TUV-GS,CE,ROHS certificate; Flywheel:2.5kgsoutside magnetic system8 levels of magnetic resistancecertificate:GS.counter with five function:scan,speed,time,distance,calories,hand pulseadjustable height of saddle:77-89cmassembly size:78x41x113cmpacking:1pcs/ctnMeas.:122X36X22cmN.W/G.W:15.2/18KGScontainer loading:20ft/40ft/40HQ:262pcs/586pcs/636pcs