Hi, everybody. Could you help me. I found a phrase which I couldn't understand. "In the spare bedroom, dawn fell on the pickled-ash wardrobe. Greta had given the top section to Lili. The bottom drawers were still Greta’s, shut with a hair lock." What is "a hair lock" here? I have some guesses: 1. a hair lock = a hair grip 2. the word hair is used here as an adjective and means "very small" = a very small lock 3. a hair lock is a piece of artificial or natural hair like a chignon and it is put in the crack of the drawer to shut it tightly. But in that case we can see here not only one drawer but drovers. I'm confused.