Insert A Board is a good design for indoor/outdoor events to
display messages from double sides. You can insert a board
from the top easily and quickly fold or expand with 1 second
only!
① Two insert slots can quickly insert a board.
② Two hinges link both sides.
③ Riveted hinge is strong and nice.
④ The top corners with plastic pads.
⑤ Hinges have 3 strong reveted points.
⑥ Four strong feet with plastic covers to protect
the frame and reduce noise.