Here is the perfect bike bottle holder or cylinder music holder like the JBL flip.
Can be mounted on the:
Frame (pre drilled holes on the frame)
Frame tubing
Handlebars
Seat post
Neck post (e-bike)
Comes with 2 Velcro straps which can both be installed, if desired.
Link below to purchase at Walmart
The one featured in the video:
www.walmart.com/ip/Water-Bott...
Stainless steel upgraded cage:
www.walmart.com/ip/RUNACC-Bik...