72 LED and 24 LED lights feature built-in rear swivel hooks allow the lights to be used at any angle. Strong rear mounted magnets allow attachment to any metal surface. Heavy rubberized non-slip material. Plus a 9 LED flashlight features water proof, shock resistant housing with industrial grade switch. The 72 LED uses 4 “AA” batteries, 24 LED and 9 LED use 3 “AAA” batteries (not included).