YOU ARE BUYING ONE BOBBIN
Neck spacing is usually 50mm spacing consisting of one screw Bobbin and one slug Bobbin
Bridge spacing is usually 52mm spacing consisting of one screw Bobbin and one slug Bobbin

100% brand new and high quality
Material : ABS Plastic
50mm and 52.5mm vintage pole spacing, Screw and Slug side
Overall dimensions : 67 x 17 x 10mm
Pole and screw holes 5mm diameter
The space for winding the wire is 6.5mm