If you only buy 1 set of fillers, make sure its these ones.
Each set includes 2 fillers at 50cm high x 70cm wide and 1 at 70cm high x 110cm wide.
Use the small fillers under smaller jumps / as jump decoration / under jumps up to 2.4m long / as guides at the side of the jump.
Use the larger filler under jumps over 70cm / under skinny fences
Use all 3 for jumps of 3m and 3.6m lengths
These are lightweight and easy to move.