【Premium Head】: This DIY Electronic Multimeter Premium Head comes with a 4mm banana plug for premium heads, allowing for quick, easy, solder free connections to increase efficiency and reliability. 【Durability】: Rated up to 5A, the 4mm Banana Plug is rugged and premium to withstand high voltages and provide performance. 【Versatility】: This Banana Plug Connectors are versatile and can be used with any multimeter, providing great flexibility and convenience in various testing scenarios. 【Material】: 4mm Solder Banana Plug is made of nickel plated brass for increased durability and service life. 【Product Size】: Multimeter Accessories Tools size is 5.4cmx3.12cmx1.38cm/2.13inchx1.23inchx0.54inch. Specification: Contact material: nickel plated brass Size Chart: 5.4cmx3.12cmx1.38cm/2.13inchx1.23inchx0.54inch Package Includes: 1 piece 4mm Solder Banana Plug Note: Please allow slightly errors 1-2cm differences due to manual measurement.