2 pcs Inner 11mm 0.43inch Ferrite Clamps Ferrite Chokes Noise Filter Suppressor

Black plastic enclosed ferrite core for 1/2" AC power cords. Easy to install, simply snap around cord. Helps reduce EMI on AC power lines. Cable core filter will provide common-mode filtering for multi-strand cables and differential mode filtering for single conductors. Dimensions: 1-5/16" L x 1-3/16" D.