Top-rope climbing doesnt require as much gear as other types of climbing. This makes it a good way to start out climbing, since you dont have to invest a lot of money to get out on the rocks.
Basic top-rope anchor gear:
Rope: One 165-foot (50-meter) or 200-foot (60-meter) 10.5mm or 11mm rope.
9/16-inch sewn slings: 6-10 24-inch slings; 2-4 48-inch slings. Used to create anchor system.
1-inch tubular webbing: 1 tied in a 10-foot loop; 1 tied in a 20-foot loop. Use to create anchor system; ideal for tying off trees.
Oval carabiners: 6-10. Always double them up with gates opposed for safety.
Locking carabiners: 2-6. I prefer to always use locking carabiners on my entire top-rope anchor system rather than regular ovals.
Locking steel carabiners: 2. Steel carabiners are the strongest gear to thread the rope through. Aluminum wears much faster, leading to grooves in the carabiner.
Personal top-rope gear:
Rock shoes: 1 pair per climber. Snug sneakers can also work for beginners.
Harness: 1 per climber. Ideally each climber wears their own harness. If not, make sure you have harnesses for the belayer and the climber.