The Panduit FiberRunner™ Coupler is a pre - assembled 4in x 4in QuikLock™ coupler that allows for quick and easy joining of two sections of channel and/or fittings. Made from high - quality polycarbonate, this coupler is designed for durability and ease of use, mechanically attaching without the need for tightening bolts. If necessary, the coupler can be easily removed using a 3/8in nut driver. This product is environmentally friendly and complies with the Restriction of Hazardous Substances (RoHS) standards, making it a responsible choice for your cable management needs.