This is heavy duty 1" wide Velcro, sold in 3 foot lengths. Great for
strapping down batteries and electronics. It's also good for bundling up
cables. Add a
rubber grip sheet, and you have an extremely stable way to mount components.
This method allows you to fix things firmly in place while retaining the freedom
to easily swap and rearrange parts without having to drill any new holes or bolt
on any brackets.