Product Description : Item name: 4.0mm 4mm male female banana plug bullet connector. 4.0 MM gold plated Bullet Banana male Connector size: 4.8 * 19.6. 4.0 MM gold plated Bullet Banana female Connector size: 4.8 * 20.5. Weight: 2.6 g / set. Main rod is made of brass, gold plated on the surface. The lantern type male insertion structure has excellent elasticity, superior conductivity and reliability, and has a strong overcurrent capability that can satisfy high current charging / discharging requirements. Mainly suitable for connecting plugs such as car models, aircraft models, medical wires, high end lithium battery plugs. Packing : 20 pairs. 20pcs * 4MM Banana Bullet Male Plug Connector. 20pcs * 4MM Banana Bullet Female Plug Connector .