This is not a sale of clippers. This is a sale of compatible ceramic blades. For your genuine models, ER9900 and ER9920, you can simply attach these ceramic blades. While it won't cut as short as our compatible fade blades, it's possible to achieve a cut of around 0.3mm. The blade extension may vary depending on the clipper model. Replacing and cleaning the blades that have lost their sharpness can somewhat restore their cutting ability, making them useful in emergencies. Consider keeping them as a backup. Please note that the sound will be slightly louder than with genuine blades. I am selling these because I have switched from ceramic blades to stainless steel blades, which offer improved cutting performance. Available colors are white and black. I will send whichever color is in stock. If you have a preference for a specific color, please inquire in the comments. ⚫︎ To minimize shipping costs, some parts may be processed. There is no problem with usage. Shipping will be via standard mail. In this case, the blade part will be protected with bubble wrap due to the thickness, but the base will be placed directly in the envelope as it will not break.