Windy weather? Turn the sign holders ‘upside’ down with the feet at the ‘top’. Less of an ‘upright’ area for the wind to blow against! Also in this position you can use a tent peg to even more stability or to ensure the sign holder ‘stays put’!
Pole for jump needs weight? End caps are removable. Fill pole with sand, grit or better still, water -
Sign holder storage -