It looks easy enough to figure out, a rectangle that has been snowballed in the corner, sewn to another in the opposite way you might have to play with the measurements but I would start with 2.5 X 5.... set on point. someone with an EQ could probably help. It looks like it could also be be done in tube fashion.
Last edited by diamondee; 08-04-2018 at 12:18 PM.
Reason: wrong instruction