Button Set for School Uniform (Gakuran) - Black Stand-Up Collar - High School Uniform

This is a button set for a Gakuran (Japanese school uniform) with a stand-up collar.
These are new and unused items, purchased online as spares for my child's uniform, but they were not needed as they graduated.
However, please understand that these have been stored at home by an amateur. Please check the images before purchasing.