Brand: Parts Express. MPN: 300-561. Save yourself the aggravation and keep these jumpers on hand. Fits 5.8mm x 0.62mm jumper pins with 2.5mm pin spacing for use with volume controls and PC boards. Jumpers for Impedance Matching Volume Controls and PC Boards 2.5mm Pitch 10 Pcs. You spend days installing your in-wall and in-ceiling speakers volume controls switches and amplifier just to find a speaker doesn t work. Hours of trouble shooting and the problem ends up being a lost jumper. One little black jumper brings your whole system to a dead silence. These jumpers are packaged ten to a zip-lock style bag. Fits 5.8mm x 0.62mm jumper pins with 2.5mm pin spacing for use with volume controls and PC boards. Save yourself the aggravation and keep these jumpers on hand. Product Details BrandParts ExpressPart Number300-561UPC844632084836Unit of MeasureEachWeight0.005.