Item Descriptions:-Easy for installation and use. It can be used in either electronics or a laboratory for testing.-It is safe for use, each testing hook ?with the insulation plastic boots covered.-The connection is made to a small copper piece within the top of the hook, the wire can easily be pushed firmly into the slits to make a solid connection.-Great replacement connector hooks for the testing lead cable.-The package includes 5 colours test hook clips of red, blue, green, black and yellow, 8pcs each colour, 40pcs in total.Package:8x Red Test Hook Clips8x Blue Test Hook Clips8x Green Test Hook Clips8x Black Test Hook Clips8x Yellow Test Hook ClipsItem Specifications:Colour:Red, blue, green, black, yellowQuantity:40pcs (8pcs each colour)Material:Plastic