A simple pulley system, using either single fixed pulley or a basic compound system with two pulleys, can be used to easily lift heavy weights.
Pulleys: Simple Machines In Our World, Where Do You Find Pulleys
How to Use a Single and Double Pulley System
3 Types of Pulleys
Cast Iron Pulleys Single / Double Various Colours - Up & Down System Using Rope
Helix Operations – Tactical – Hauling and Rigging
2 Pulley System for Exercise, Adjustable Cable Pulley System for Weight Lifting & LAT Pull Down, Home Gym Fitness Pulley Cable Machine Equipment with Loading Pin, Straight Bar, Tricep Rope, Exercise Handles (
How to Make a Block and Tackle System
Principles of Pulleys & Levers
Pulley Lab
Pulleys: Simple Machines In Our World, Where Do You Find Pulleys