A razor comprising: - an elongated shaving cartridge comprising at least one blade having a blade edge extending along a transversal axis (A-A), and - a razor handle having: - a handle body extending in a longitudinal direction (C-C) between a front end and a back end, said handle body having a hollow housing provided with an opening at the front end of the handle body, said longitudinal direction (C-C) being perpendicular to the transversal axis (A-A), - a cartridge carrier carrying said shaving cartridge and being slidably mounted on the handle body between a shaving position in which the shaving cartridge extends at least partly out of the housing, and a non-shaving position in which the shaving cartridge is retracted inside the housing, - an actuator rotatably mounted on the handle body for controlling cartridge carrier motions, and - a transmission mechanism adapted to convert a rotation of the actuator in a sliding of the cartridge carrier, characterized in that said opening is elongated and extends along the transversal axis (A-A), the opening having a length which is sufficient to accommodate the shaving cartridge with the blade edge in the transversal axis (A-A), and in that in the shaving and non-shaving positions, and during the motion of the shaving cartridge between those two positions, the shaving cartridge extends parallel to the transversal axis (A-A). - an elongated shaving cartridge comprising at least one blade having a blade edge extending along a transversal axis (A-A), and - a razor handle having: - a handle body extending in a longitudinal direction (C-C) between a front end and a back end, said handle body having a hollow housing provided with an opening at the front end of the handle body, said longitudinal direction (C-C) being perpendicular to the transversal axis (A-A), - a cartridge carrier carrying said shaving cartridge and being slidably mounted on the handle body between a shaving position in which the shaving cartridge extends at least partly out of the housing, and a non-shaving position in which the shaving cartridge is retracted inside the housing, - an actuator rotatably mounted on the handle body for controlling cartridge carrier motions, and - a transmission mechanism adapted to convert a rotation of the actuator in a sliding of the cartridge carrier, characterized in that said opening is elongated and extends along the transversal axis (A-A), the opening having a length which is sufficient to accommodate the shaving cartridge with the blade edge in the transversal axis (A-A), and in that in the shaving and non-shaving positions, and during the motion of the shaving cartridge between those two positions, the shaving cartridge extends parallel to the transversal axis (A-A). - a handle body extending in a longitudinal direction (C-C) between a front end and a back end, said handle body having a hollow housing provided with an opening at the front end of the handle body, said longitudinal direction (C-C) being perpendicular to the transversal axis (A-A), - a cartridge carrier carrying said shaving cartridge and being slidably mounted on the handle body between a shaving position in which the shaving cartridge extends at least partly out of the housing, and a non-shaving position in which the shaving cartridge is retracted inside the housing, - an actuator rotatably mounted on the handle body for controlling cartridge carrier motions, and - a transmission mechanism adapted to convert a rotation of the actuator in a sliding of the cartridge carrier,