This little thing is made for the
emax Tinyhawk s fpv racing Whoop. It will adapt any 1 or 2s battery to the drone using the existing rubber bands and also works as a cushion landing gear.
Color 3 Flexable
You could use ABS but I like the Flex but Its a little hard to remove the supports.Also you might want to use double side mounting tape or velcro to hold it on.