I FOUND THEM OF GREAT HELP, FUN AND AMUSEMENT AND BEAUTIFUL GADGET TO PRACTICE YOUR SKILLS (PLEASE KEEP IT AGAINST A SAFE / SOLID BACKDROP / BACKGROUND - CARELESS SHOOTING AT IT MIGHT BE POTENTIALLY DANGEROUS TO OTHERS).
KEEP IT AT YOU PLACE OF CHOICE AND ENJOY HITTING, YOU DO NOT NEED TO VERIFY, IT WILL SPIN AND TELL YOU.
THE BEST THING IS THAT IT IS PORTABLE AND CAN BE CARRIED EASILY IN A BAG AND INSTALLED IN MUNUTES, YES A BAG COMES WITH IT.
THE ONLY ADVERSE THING I HAVE TO SAY, YES IT IS MY PERSONAL OPINION YOU CAN DIFFER, IS THAT THE SPINNERS ARE TOO BIG IN DIAMETER FOR SHOOTERS OTHER THAN BEGINNERS, ONE OF THEM SHOULD BE SMALLER SAY ONE INCH, BUT YES THERE IS A WAY OUT, YOU CAN PASTE DIFFERENT COLOUR PAPER OF THE SIZE OF YOUR LIKING AND ENJOY THE CHALLENGE, YES EXTRA STICKERS COME WITH IT TOO. IT IS SIMPLY GREAT.