A device (1, 1′) for at least partially unscrewing a lid (30) from a container body (31) has a lid engagement portion (3) and a container body engagement portion (13) each having opposite first (4, 14) and second ends (5, 15). Levers (20, 21) project from these first ends (4,14). An elastically expandable member (22) is connected between the second ends (5, 15) of the lid engagement portion (3) and the container body engagement portion (13). If the lid engagement portion (3) is in contact with the lid (30) and the container body engagement portion (13) is in contact with the container body (31), moving the levers (20, 21) towards each other first causes the lid (30) to be entrained relative to the container body engagement portion (13) and the container body (31) to be entrained relative to the lid engagement portion (3) while the elastically expandable member (22) is stretched.