These color cable ties are specifically manufactured to be used for indoor or in-wall cable bundling. The choice between twelve different colors will help you to easily spot the difference between whatever you happen to be securing with these zip ties.Kable KontrolĀ® Zip Ties - 8" Long - 100 Pc Pk - Gray color - Nylon - 50 Lbs Tensile Strength Colored nylon zip ties can be used outdoors however, they will only serve as a temporary solution since they are not UV protected..