the locking bolt for adjustment knobs are a nice touch as the knobs as secured tightly into position. lie on your side with problem ear up. tho’ none go with me still i will follow. she was found at the flea market. i start wondering too much and feeling like my home is not where i am. there are other trails to try such as the butterfly walk where you could see 25 species of butterfly. i think i read the whole thing in less than a day (a work day, even). 