A shaving head (100; 200) comprising: a housing (101; 201) extending along a longitudinal axis (X-X), the housing having: a top side (102; 202), a bottom side (104; 204) opposite to the top side (102; 202), first and second longitudinal walls (106, 108), each extending longitudinally along the longitudinal axis (X-X) between the top and bottom sides (102, 104; 202, 204), and first and second side walls (110, 112; 210, 212), each extending between the first and second longitudinal walls (106, 108), at least one component (113; 213) coupled with the housing (101; 201); and at least one retainer (150; 250) coupled with one of the first and second side walls (110, 112; 210, 212) of the housing and securing the at least one component in the housing, the at least one retainer (150; 250) including a top wall (1506; 2506), a side wall (1500; 2500) and a bottom wall (1508; 2508), the top wall (1506; 2506) of the retainer overlapping with the top side (102; 202) of the housing, the bottom wall (1508; 2508) of the retainer overlapping with the bottom side (104; 204) of the housing; wherein, the at least one retainer (150; 250) includes an anchor tooth (152; 252) received by the housing (101; 201), the housing being further provided with at least one recess (160; 260) in at least one of the first and second side walls (110, 112; 210, 212), and the anchor tooth (152; 252) of the at least one retainer (150; 250) being received by the corresponding at least one recess (160; 260), wherein the anchor tooth (152; 252) is formed in a lateral side of the side wall of the at least one retainer (150; 250) and wherein the at least one recess (160; 260) is formed in a lateral side (1100; 2100) of the housing (101; 201). a top side (102; 202), a bottom side (104; 204) opposite to the top side (102; 202), first and second longitudinal walls (106, 108), each extending longitudinally along the longitudinal axis (X-X) between the top and bottom sides (102, 104; 202, 204), and first and second side walls (110, 112; 210, 212), each extending between the first and second longitudinal walls (106, 108), at least one component (113; 213) coupled with the housing (101; 201); and at least one retainer (150; 250) coupled with one of the first and second side walls (110, 112; 210, 212) of the housing and securing the at least one component in the housing, the at least one retainer (150; 250) including a top wall (1506; 2506), a side wall (1500; 2500) and a bottom wall (1508; 2508), the top wall (1506; 2506) of the retainer overlapping with the top side (102; 202) of the housing, the bottom wall (1508; 2508) of the retainer overlapping with the bottom side (104; 204) of the housing; wherein, the at least one retainer (150; 250) includes an anchor tooth (152; 252) received by the housing (101; 201), the housing being further provided with at least one recess (160; 260) in at least one of the first and second side walls (110, 112; 210, 212), and the anchor tooth (152; 252) of the at least one retainer (150; 250) being received by the corresponding at least one recess (160; 260), wherein the anchor tooth (152; 252) is formed in a lateral side of the side wall of the at least one retainer (150; 250) and wherein the at least one recess (160; 260) is formed in a lateral side (1100; 2100) of the housing (101; 201).