Based on this product's specifications, here are some alternatives and similar models
Replacement Blade Panasonic WER9920Y X-Taper for Hair Clippers, Compatible Cutting Head
Summary description:
Panasonic WER9920Y X-Taper replacement blade designed for use with compatible hair clippers. This cutting head assembly restores clean, precise cuts and is intended as a direct replacement part. Suitable for professional or home use when the original blade becomes dull, it helps maintain clipper performance and ensures even trimming results.