Buy 2 get 10% off,Buy 4 Free 1

Product Name: Double-sided stereo photographic background paper
Material: thickened coated paper
Size: 57*87CM
Features: Thickened coated paper, not easy to fold. The surface is covered with PVC waterproof film, which can be wiped, waterproof and dust-proof.
Discount: 6% off 2 full cards, 1 off 4 full cards (25% off 4 full cards)

How do I get buy 4 and get 1 free?
If you add more than or equal to 4 pieces to the cart and pay together, 25% of the total amount will be automatically reduced, so that 4 pieces only pay the amount of 3 pieces. It's 25% of the total amount, so the more you buy, the more you get.