why would u want your dog jumping a 5 bar gate at night there could b stones rock pot hole any thing at the other side u end up with broken toes or sore wrists for wat to prove it can jump my dogs can jump but will go thrugh the gate just as fast when there chasing and jump well all and good thats wat there ment to do but ill not call a dog a wanker because it cant jump a gate when just entering a field