Nice hunt @shaanivc!
The 'Gravity Grinder' has to be the best salt and pepper mill that I have ever seen that needs no press of a button or batteries to replace or charge. It's all done by shaking it to move the hidden weight inside which drives the helix shaped teeth grinding mechanism.
No button also means you can use it easily, single handed, leaving you a spare hand to do some other task at the same time.
Have a hand disability? Only got one hand? Then, this has to be a very useful aid to help with everyday living and independence.
Have a good day, everyone!
@donkeysworld.