They are widely used in the cable installation industry project field. Cable Wall Bushing white 7.0 mm, in white with inner hole Dia.7.0 mm X Cap Dia. 31 mm X 30 mm Length.  The 4 row inverted gear teeth designed have a good function to prevent the bushing plug sliding off the drilled hole in the wall,used together the silicone glue to prevent the moisture and dust penetration into the cable  line through the drilled hole in wall and make the wall look smooth after the cable line installation. 

    As the manufacturer of cable wall bushing, The white, clear and black colour and the different sizes, style are avaiable as customers'request. They are made with high quality ABS, PP,PE or Nylon materials which is the environmental plastic materials and reach RoHS certificate inspection and have the function of UV protection,used for cable installation through the wall safety and to protect cable line surface.