Low Energy Consumption: All adapters are entirely tested: ageing test, material test, over-voltage test, over-heat test, security test; the comb aspects excessive efficiency and low energy consumption. Product Type: The durable for head comb. Precision Edge: Exchangeable trimmer head is designed for accurate shaping. Wide Application: Suitable for HC3400 HC3410 HC3420 HC3422 HC3426 HC5410 HC5440 HC5442 HC5446 HC5447 HC5450 HC7452 replacement hair clipper. Color: grey Material: ABS Package Contents:1 x comb Only the above package content, diverse products shouldn't included. Note: Light and assorted displays can cause the colour of the article in the photograph somewhat assorted from the real thing. The measurement allowed error is +/- 1-3cm.