HQ4R electric razor heads, set of three. Replaces Norelco HQ4, Norelco HQ4 Plus, 1915XL & 1915XR shaver heads. Fits Norelco electric shaver models: 5812XL, 5625X, 5426LC, 200SC, 300SX, 3405LC, 3601X, 3605X, 3801XL, 3805XL, 3865XL, 400DX, 410DB, 4601X, 4602X, 4625X, 4805XL, 4807XL, 4816XL, 4817XL, 4821XL, 4825XL, 482XL, 4845XL, 484XL, 4865XL, 486XL, 4885XL, 5426LC, 5625X, 500RL, 501RL, 505RL, 600RX, 605RX, 665RX, 700RL, 705RL, 710RL, 715RL, 720RL, 725RL, 750RL, 800RX, 805RX, 815RX, 825RX, 835RX, 850RX, 875RX, 885RX, 895RX, 900RX, 905RX, 915RX, 935RX, 945RX, 950RX, 955RX, 965RX, 968RX, 985RX, HP1318, HP1319, HP1327D, HP1328E, HP1328S, HP1337C, HP1601, HP1602, HP1604, HP1605, HP1606, HP1608. Please note: This is a replacement part, and is NOT manufactured by Norelco.