[header] How to trim trees [title] Wear safety goggles, helmet, and purchase a step ladder. [step] Safety goggles and a helmet or hard hat will protect your head and eyes as you prune adult trees. You may also need a small step ladder to reach higher branches. 
However, if the branch is located high in the air and requires an extension ladder, consult a professional instead of trying to do it yourself. [substeps] Purchase this equipment online or at a hardware store.