A container opening device (100, 200), for use with a sealable container (114, 214) having a closure attachable thereto to seal the container (114, 214), wherein the closure has a peripherally weakened zone, or a partly peripherally weakened zone, wherein the container opening device comprises: an actuator tab (122, 124, 222) operatively attachable to the closure adjacent the zone such that actuation of the actuator tab (122, 124, 222) between first and second positions causes shearing or detachment of the zone from its weakened periphery thereby to provide an opening to an interior of the container (114, 214), in use; and a pull member (126, 226) attached to the actuator tab (122, 124, 222) to facilitate actuation of the tab (122, 124, 222) between the first and second positions, wherein the pull member (126, 226) is constructed from the same material as the actuator tab (122,124, 222), wherein the pull member (126, 226) is integrally formed with the actuator tab (122, 124, 222), wherein the pull member (126, 226) is flexibly displaceable between a first position in which the pull member (126, 226) is substantially parallel to the actuator tab (122, 124, 222), and a second position in which the pull member (126, 226) is substantially transverse to the actuator tab (122, 124, 222), characterized in that, the pull member (126, 226) in the first position is folded onto the actuator tab (122,124, 222) and is located in a plane substantially parallel, but slightly spaced from, the plane associated with the actuator tab (122, 124,222) and a second position, wherein in the second position the member (126, 226) is located in a plane substantially transverse to the plane associated with the actuator tab (122,124, 222), in that an end portion of the pull member comprises an up-turned portion, wherein the up-turned portion extends obliquely from a longitudinal axis of the pull member, and in that the actuator tab (122, 124, 222) is more rigid than the pull member (126, 226). an actuator tab (122, 124, 222) operatively attachable to the closure adjacent the zone such that actuation of the actuator tab (122, 124, 222) between first and second positions causes shearing or detachment of the zone from its weakened periphery thereby to provide an opening to an interior of the container (114, 214), in use; and a pull member (126, 226) attached to the actuator tab (122, 124, 222) to facilitate actuation of the tab (122, 124, 222) between the first and second positions, wherein the pull member (126, 226) is constructed from the same material as the actuator tab (122,124, 222), wherein the pull member (126, 226) is integrally formed with the actuator tab (122, 124, 222), wherein the pull member (126, 226) is flexibly displaceable between a first position in which the pull member (126, 226) is substantially parallel to the actuator tab (122, 124, 222), and a second position in which the pull member (126, 226) is substantially transverse to the actuator tab (122, 124, 222), characterized in that, the pull member (126, 226) in the first position is folded onto the actuator tab (122,124, 222) and is located in a plane substantially parallel, but slightly spaced from, the plane associated with the actuator tab (122, 124,222) and a second position, wherein in the second position the member (126, 226) is located in a plane substantially transverse to the plane associated with the actuator tab (122,124, 222), in that an end portion of the pull member comprises an up-turned portion, wherein the up-turned portion extends obliquely from a longitudinal axis of the pull member, and in that the actuator tab (122, 124, 222) is more rigid than the pull member (126, 226).