The author discusses the parts of typical canes. This is a rather short section. Over the span of my career, I experimented with a variety of canes. I switched to the NFB canes because they are light and well balanced. Anyway, in less than a week all the NFB canes came back in shredded little pieces.
Kids are hard on canes.
I still use the NFB canes for training and for high school students, but the very young students get aluminum alloy kiddy canes. I have also used the NFB cane for a student with low tone. His muscle strength was so weak that the aluminum canes were a burden. He loved the NFB cane so much that he was actually careful not to break it. Anyway, most elementary and middle school students get metal folding canes.