A block and tackle is a pulley system designed to drastically reduce the force required to lift something while increasing the amount of rope that needs to be pulled.

A typical pulley requires a 1:1 force to lift an item, but a block and tackle set reduces the load by the number of rope segments between the two pieces. The version pictured has 4 segments and would therefore reduce the amount of required effort to 1/4 the weight of the load, under ideal circumstances. increasing the number of pulley wheels has a diminishing return however as friction and the flex of the rope begins to steal from the work required.

I tweaked the wheels to make the edges more durable and adjusted the standing block because it was showing a seam where there shouldn't've been one.