Specifications:Product Name : LED HolderMaterial: Plastic+CopperSize:0*0/1*1: SilverFit LED Diameter : 5mm/0" Thread Diameter : 8mm / 0"Total Length : 12 mm / 0" Metal LED Holder, Chrome Plated, Fixing Hex Nut, Suitable For Use With 5mm LED Content : 20 x LED HoldersNotes:Due to versions in lights and exhibit settings, the color of this item might vary slightly from the picture allow slight size variations thanks to varied guide measurements.