... .sizes: 20*10 , 24*24, 39*19 3.pvc material 1. name: trunking accessories , inner trunking , "T" SHAPE Channel ,angle bend, outter bend ... the process of construction ,electrical equipment,electrical components,4)Protects wire and cable from easy damage or ruin5)No rust occurs ... we will try our best to be service of you . pvc cable trunking