Gardner Bender PMB-1525 3/16-Inch Black Low Voltage Plastic Staples, 25-Pack Zinc-plated nail Indoor and outdoor applications UV-resistant polyethylene saddle Black in Color 1 nail per staple for quick and easy installation Low voltage plastic staples Secures bell, speaker, thermostat and telephone wire For inside and outside applications UV resistant polyethylene saddles will not rust, rot or deteriorate Zinc plated nails resist rust and corrosion