This is ONE hard plastic backing sized to fit the large (9.5 cm x 14.5 cm) stamping plates. If you prefer your plates with a backing, be sure to grab one of these! If you add this as a recurring item to your monthly subscription, you will receive one plate backing each month that the plate backing is included on your order. If you are adding this to your subscription, there is no extra charge for shipping. If you would like to purchase this plate backing separately, we can either contact you for payment of shipping or you can grab a 5-pack at Lantern & Wren here: https://www.lanternandwren.com/plastic-nail-art-plate-backing-full-size-5-pack/