The marriage of neoprene and Velcro® loop results in a strap that applies a constant 1,4 kg. tension to the flash with a non skid surface. The rugged UltraStrap attaches to most flashes in seconds to provide a secure attachment point for all LumiQuest accessories. Actually, applications for the UltraStrap are limitless. Think of it anytime you want to temporarily but securely attach anything to just about anything else!