KUOQIY 40 PCS 4 mm Banana Plug Socket Connector Set, Binding Post Banana Plug + Nickel Plated Banana Plug, for Speaker, Audio/Video Receiver (Red, Black)

• Package Includes: 20 Pairs 4mm banana adapter, Red and Black easy to distinguish, compatible with 4mm banana plugs and sockets.
• Material: These devices are made of a high-quality alloy and have good electrical conductivity, are insulated with terminals made of ABS plastic and are easy to use.
• Easy installation: due to the colour-coded black/red, it is easier to maintain the correct polarity. red commonly means an active or positive terminal; black indicates an inactive or negative terminal.
• Easy to Use: Solderless Banana Plugs are Easy to Install, Just with Screw Lock to Secure the Cable.
• Wide Application: Great tools for using in the audio equipment, industrial instrument, power test and automobile test. Stable performance and easy to install, durability and long service life.

Specification: Type: Banana Socket Color: Red, Black Material: ABS + Alloy Size: 33 X 12mm (L*D) Socket Inner Diameter: 4mm Type: Banana Plug Color: Red and Black Material: Nickel Plated and Plastic Size: 39 X 9mm (L*D) Plug Outer Diameter: 4mm Package Included: 10 x Black Banana Socket 10 x Red Banana Socket 10 x Black Banana Plug 10 x Red Banana Plug 1 x Screwdriver