Typically, the end cap seals the trunking at the end to stop anyone from tampering with the wiring, connections, or allowing outside objects inside. Compartment trunkings are typically used in commercial or industrial applications to distribute power and data cabling across a facility. Typically, the end cap seals the trunking at the end to stop anyone from tampering with the wiring, connections, or allowing outside objects inside. Specification: Color : White Dimensions : 170mm x 50mm Material : PVC