Areyourshop 100 Pcs 5 Color 4MM Nickel Plated Banana Plug For Probes Binding Post 100% Brand New and high quality Banana plug diameter: 4 mm 4MM Banana Plug FOR BINDING POST Speaker Meter Test length:about 55mm; The side hole diameter:4mm. Color:Same as the picture show. Package Included: 100pcs (20 Red + 20 Yellow + 20 Black + 20 Blue + 20 Green) Friend, if you need to choose color , please message when you payment !