3ds max 9 Attaching prop to both hands

Hi there, Ok, here is my problem. Is it possible to attach a prop for a Biped in 3dsMax 9 to both hands ? Or better attach it to one hand and let the other move also with it ? I have tried to attach it to the right hand and then use the select and link on the left hand to link it to the prop but it didnt really do anything. So does anyone knows how this works ? Thanks in advance for your help !