This is not the normal finset you receive when purchasing a twintip.You will receive fins only without screws. Use those screws (item number 44900-8072) for your fins: WK 2.0: M6x18 mmWK 3.5: M6x18 mmFS 4.5: M6x14 mmFS 5.0: M6x14 mm
The product is excellent, but as far as the indications on choosing the size to buy are concerned, they should be resized. Following the table I purchased the product L (large) but I should have taken the M (medium) because when wet it tends to give way and remains too large. Consider that I am 189cm tall, weigh 86kg and my chest measures 110cm. They should have considered the item when wet. Too bad.