Umarex knockdown Pellet Trap - Duck Hunter

This rugged pellet trap made of sheet steel provides hours of reliable service – safe shooting for young and old. Pellet trap, black, with four steel duck silhouettes. When the smaller center target is hit all targets return to the upright position. Suitable for pellets up to 7.5 Joules / 6ft Lbs

However if your rifle is a full Sub 12 Ft Lb - you can still use it, just put the target out 35m away, the pellet speed will drop enough to not be too damaging to the target.

The targets stay down using magnets, it has to be a clean good hit....its magnets you have to allow for sometimes the laws of magnetism not working.