Philips Adjustable Comb for Oneblade Pro Replacement part - Adjustable comb for Oneblade Pro models - 0.4 to 10mm - Back Pack Comb 20 in 1 - Black - Hair Length from 0.4mm to 10mm - Works with Philips models: QP6507, QP6530, QP6531, QP6532, QP6541 - Works with Philips models: QP6542, QP6550, QP6551, QP6552, QP6650 - Works with Philips models: QP6651, QP6652 - If your model does not appear on the list of compatible models, please email with your model code before purchasing so we can check compatibility for you.