The product is a set of 3 layer coil former bobbins with a total of 8 pieces, along with 2 ferrite tubes/beads/cores. These bobbins can be designed for winding coils for Linear Variable Differential Transformers (LVDT's) The mounting style can be encapsulated for robustness. Making the middle tier the primary, the 2 outers the secondary and the ferrite core moving isolated and frictionless through the middle, provides a great accurate measurement of movement. There are other uses of course!
