The boots are manufactured according to the 56 mm diameter ratchet block. The height of the boots is 35 mm.
Please measure the dimensions of the image. For diameter 56 it is 29 mm.
If you are using a 40 mm diameter ratchet block you will need to cut the bottom of the stand up boot and adjust its height. It is better to tilt the block slightly than to stand straight.
Cut while pulling the knife horizontally.
