General description Replace your electric shaver head with this high-quality 3X replacement set designed for the 53B Series. This cutter head ensures your razor performs at 100%, providing a closer and more efficient shave. Technical specifications Compatible models: 50-R1000S, 50-B1300S, 50-R1320S, 50-R1300S, 50-M4000CS, 50-M4200CS, 50-M7200CC, 50-W4320CS, 50-B7000CC Color: Black Material: Plastic + Metal Measurement allowed error: +/- 1-3 cm Installation Easy to install Clean the razor before installing the new head Usage Provides 100% performance for a closer shave Other information Package Contents: 3 x Shaving Head Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.