This is a training , made of stainless steel, strong and durable, and can serve you for a long time. It can be hung on the wall for design training. Targets of different sizes are available to meet your needs. Features -Color: Dark silver. -Material: Stainless steel. -Size S: About 3.50X2.00X0.20cm/1.38X0.79X0.08inch. -Size : About 4.10X3.00X0.20cm/1.61X1.18X0.08inch. -Size L: About 5.70X4.00X0.20cm/2.24X1.57X0.08inch. -Targets with different diameters can be replaced with targets of different sizes as needed to adjust the difficulty of training. -There is a hole at the peak, which can be used for screws to fix the on a wall or tree, etc. -Thick design, not easy to damage, can serve you for a long time. -For professional or personal training, suitable for outdoor or sports venues. -The workmanship of this product is perfect, and you will have a good experience in using it. Package list: 3