Features Applicability: It is used for accurate circuit testing/power supply. It is a good tool for self connecting a connection with a power supply or a multimeter. Strong Elasticity: There is a spring on the front end of the clip, which is stretchable. The clip of the clip has strong elasticity and can hold the object firmly. Good Protection Performance: It is better to prevent short circuit caused by touching the feet. Material: Pure copper metal sheet, higher conduction rate, welded, built in spring, can firmly hook the test contact. Easy to Install: Long service life, good electrical conductivity, and corrosion resistance. Specification: Item Type: Flat Test Hook Material: ABS, Nickel Plated Brass Purpose: Used For Accurate Circuit Testing / Power Supply Package List: 4 x Test Hook (Red) 4 x Test Hook (Black) 4 x Test Hook (Yellow) 4 x Test Hook (Blue) 4 x Test Hook (Green) Note: Prevent it from being placed in high temperature to avoid damage Package List 4 x Test Hook (Red) 4 x Test Hook (Black) 4 x Test Hook (Yellow) 4 x Test Hook (Blue) 4 x Test Hook (Green)