General description For use with the ProFoil lithium foil shaver, this replacement set includes 4 pairs of shaver nets and cutter heads, ensuring your shaver remains in optimal cutting condition. Regular cleaning of the shaver before installation is recommended for best results. Technical specifications Material: Metal Color: Gold Package Contents: 4 Pair x Knife Net, 4 Pair x Knife Head Measurement allowed error: +/- 1-3 cm Usage For maximum performance, it is advised to replace the blades every 6 months. The head and body assembly can be easily removed for cleaning; simply rinse, wash, and dry before reinserting into the body.