The KC Rally Regulations 2024 (16.h.) states... "All jumps must be constructed in a manner that provides stability and safety for all dogs. Pole width is to be between 1 metre and 1.5 metres. It must be a single bar jump which is able to fall in either direction. The jump must not have wings..... and Jump Heights – Shoulder Height under 30 cm - jump 10 cm; 30 cm to 40 cm - jump 20 cm; 40 cm to 50 cm - jump 30 cm; 50 cm and over - jump 40 cm ] The jumps illustrated here would NOT be considered to be ‘legal’ for KC Rally regulations