This 20-pack of raceway lateral elbows work with the StarTech.com CBMWWD3211 raceway system. Join Two Raceways Together and Run them up the Wall at a 90 Degree Angle Use these cable raceway lateral elbows with the StarTech.com CBMWWD3211 raceway to join two of them together at a 90 degree angle to extend the length of your raceway up walls in your office or server room. Industrial Strength Made from sturdy self-extinguishing ABS that #39; #39;s also warp proof, these wiring duct elbow connectors are UL approved with 94HB Flamability (Horizontal Burning) Rating. Use in Combination with Other Raceway Accessories Combine this lateral elbow with other StarTech.com CBMWWD3211 raceway system accessories to give your cable management solution a finished look. The Coupler (CBMWWD3211C) (20-Pack), joins two raceways together and extends the length of your raceway. The End Piece (CBMWWD3211E) (20-Pack), cleanly caps off the end of your raceway. The Inside Elbow (CBMWWD3211I) (20-Pack), joins two raceways together inside of corners at a 90 degree angle. The Outside Elbow (CBMWWD3211O) (20-Pack), joins two raceways together around corners at a 90 degree angle. The T Connector (CBMWWD3211T) (20-Pack), joins three raceways together in T-bar. These cable management raceway lateral elbows are TAA compliant and backed by a StarTech.com Lifetime warranty and free 24/5 technical support. StarTech.com has been the IT professionals choice for over 30 years.