Kit with one each 102,106 and 107 for “HO” / “O” / “S” / Lionel/ and LGB (Garden Railway) Size trains
Also good to use for Larger Radio Control Cars and Airplanes,
Computer fans, locks and other household uses.

See specific applications for #102, #107 and #106 in individual product descriptions above
BONUS: Kit also includes 1.5 ” and 6″ long needle extension with flexible tubing with longer needle to help you get at those hard to reach placed.