three.5. Th?c hi?n m?t s??nhi?m v??khác do ban th??ng v??t?nh ?y, th??ng tr?c t?nh ?y giao. I bought this to hold my Korg Kronos that is a fairly weighty keyboard which i definitely gonna use the wheels. Even so, at The 1st time I put it into the case and drag it absent, not on difficult g