Their low profile loop design is capable of accepting 1/2″W Velcro or cable ties to tightly secure wiring to the back wall of the enclosure. Mounting tabs insert vertically into enclosure mounting holes and secure with a plunger/grommet (no tools necessary). Clips mount secure within enclosure and designed to withstand 20 lbs pull force.
https://www.amazon.com/Legrand-Q-AC103520-AC1035-20-Management/dp/B07K13R1DF