This listing is for TEN (10) of the 7 amp - 125v glass fuses. These fuses are 6mm X 30mm (1 1/4 x 1/4in). These fuses are perfect for indoor/outdoor C7 and C9 light strings THAT REQUIRE THIS SIZE FUSES!!!. The plug should have75a - 125v stamped on the fuse cover. Not to be used on strings over 125v!!!