Block and tackle

A block and tackle was a set of ropes and pulleys that enabled a user to vertically lift objects heavier than their strength would normally be capable of lifting.

Description
A block and tackle typically consisted of a set of square, wooden blocks with greased internal wheels. These blocks are attached to something, such as a wall or tree branch, by multiple straps and harnesses in order to securely suspend it above the desired object. Finally, a rope, typically in length, is then threaded through these series of internal wheels and then a hook that attaches to the desired object.

A block and tackle was commonly sold in three different weight classes. A light version was capable of lifting objects less than, a medium was capable of lifting objects up to , and a heavy version was capable of lifting objects up to in weight.

History
Some time between the First and Second Mulhorandi Empires, around -1048 to -105 DR, people in the land of Mulhorand invented the block and tackle system. This enabled them to construct buildings with greater ease.