Replacement studs for Mizuno spikes (2 models). These are quite old, but I used some (4) and the rest (8) have been stored at home without being used. I am selling these to organize my room. The outer case is old, but the contents are still usable, so I will sell them to someone who needs them. - Model: 8ZA-109 - Model: 8ZA-104 - Quantity: 8 pieces (4 out of 12 have been used) - Brand: Mizuno