specification   wc8777 magnetic bike   use home use display type lcd display readings  speed, time, distance, odo, and calories with this large lcd window monitor. fly wheel weight 5kgs,two way rotation, fly wheel tension control level 8 level manual magentic resistence control battery type 2 aa batteries are enough. handle adjustable option yes seat adjustable yes assembly area(lxwxh) 31″x19″x45″(790x490x1150mm) programs 6 programs