Description Crafted from practical pure copper, these 4mm safety banana plugs ensure excellent conductivity and durability. Surrounded in a heat-resistant PA shell, they are designed for secure and reliable connections. Ideal for soldering projects, they provide a professional finish for speaker wires and DIY audio setups. Features -Color:Green -Material:Plastic+Metal -Size:5.30X0.80X0.80cm/2.08X0.31X0.31in -Size:3.10X0.50X0.50cm/1.22X0.20X0.20in -Plug Diameter: 4 mm -High temperature resistance: designed with sturdy pa shell, this banana plug ensures stable performance even in extreme heat, making it ideal for laboratory high temperature experiments -Fine conductivity: made from pure copper, these banana plugs provide excellent electrical conductivity, minimizing energy loss and enhancing power transmission efficiency -Easy to use: the solderable wire feature allows for easy installation, catering to both diy enthusiasts and professional electricians -Wide compatibility: with a standard size, these plugs are compatible with a wide range of testing instruments, making them suitable for researchers and engineers -DIY Science material: suitable for education institutions and home science experiments, these banana plugs support hands-on learning and practical applicationsPackage list: 3 x plastic shells 3 x banana plug