Magnaflux Replacement Copper Braid Pad (4.75 x 7.5)Magnaflux Contact Pads are copper braided pads that provide good electrical contact between the test part and contact head. Magnaflux uses high grade copper alloy to provide good conductivity and the most durability. The pads help to prevent arcing and burning of test pieces. They are flexible and provide contact over the greater surface area. The pads are also reversible with two wear faces. The Magnaflux Copper Braid Contact Pad is approximately 4.