Abstract: A monolithic jack (12) of sheet-like form (28) for removing ski-boots (14) having a rear shoulder (16), comprises a plate-like base (18) and two engagement means (20) each adapted to engage over a shoulder (16) of, and having a recess (202) to accommodate the heel (22) of, a respective one of a pair of the boots (14) when placed side by side on the base (18) in front of the means (20) which are to the rear of base (18) and face forwards. The member (28) is of metal, e.g. steel, or injection-moulded of thermoplastic plastics material, comprising a polycarbonate, with ABS or PETG. The base (18) has a non-slip upper surface portion (32), and comprises security means, e.g. aperture means (34), so it can be secured by screws to the floor. The base (18) also has a handle (36) for hanging up the jack (12).