Sign the little helper for bundling wires

Sometimes in front of the plug, you may not be able to recognize which wire works in which electrical appliance, in addition, when a bundle of wires loose out, is also a headache, after all, the wire can not be 100% insulated ah, an careless or wet environment can not be handled well, so introduce two wire identifiers & Wire binding rope, the price is $10, you can see that the identifier really has the impression of electrical shrinkage Oh, also like these colors.