The FAVHOME Trimmer Comb is the perfect replacement attachment for your Philips QT series trimmer. Specifically designed for models QT3310, QT3315, QT3900, QT4000, QT4001, QT4002, QT4003, QT4004, QT4005, QT4006, QT4007, QT4008, QT4009, QT4011, QT4012, QT4013, QT4014, and QT4015, this small red comb ensures a precise and even trim every time.Imagine..