Available for immediate purchase. The "OP1 Switch Pack" is a kit that allows you to easily change the main button switches of the gaming mice "OP1", "OP1 RGB", and "OP1 8K". The OP1 series was developed with switch replacement in mind from the design stage, and you can replace the switches without soldering, just by removing the screws with a Phillips screwdriver. Endgame Gear OP1 Switch Pack Universal Switch Set PCB 2 pieces Screws 4 pieces 7 pairs of switches EGG-SP-U1