Dual Female Banana Plug 4mm for Speaker Amplifier

From the shop's description

Features: Gold Plated Color-coded plastic insulation jacket, for easier recognition Screw lock, no soldering double female banana plug One end is for a 5mm male thread, the other end is for a 4mm banana plug. Professional made of efficiency Stable performance and easy installation. Specifications: Material: plastic + metal Color: red + gold tone + black Male Thread Dia.: 5mm Female Thread DIA. : 4mm Size: 42x16x35mm (LxWxD)