If you are using the I Can Make Shoes lasts you can follow the sizing guidance below:
Block 95mm - Suitable for the I CAN MAKE SHOES high lasts sizes EU 34-38
Block 100mm - Suitable for the I CAN MAKE SHOES high lasts sizes EU 39-41
Block 105mm - Suitable for the I CAN MAKE SHOES high lasts sizes EU 42-44
Watch our free Youtube video linked HERE on how to choose the correct heels for your shoemaking lasts.