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The two sheathes inside the outer tube protect the inner tubes when you adjust the height or transform the Double Trolley. This lets the telescopic system work nice and smooth.
The two strong stainless steel taps inside the horizontal tube hold the weight of the stool and eliminate any unwanted sqeaks arising from conventional tightening lock mechanisms. |
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I am amazed at the marvelous engineering that has gone into the design and construction of the Double Trolley.
I can't wait to use it on the job.
You are to be commended for your contribution to the brotherhood of double bassists. Bless you!
Buckner Malcolm
United States, NC
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