Lenovo IdeaPad 3-15ADA05 81W1 3-15ARE05 81W4 3-15IML05 81WB 81WR 3-15IIL05 81WE 3-15IGL05 81WQ 3-15ITL05 81X8 Series Laptop Abyss Blue Bottom Base Cover Case 5CB0X57721 8S5CB0X57721.