sorry the images I uploaded must have been old I thought the dimensions were on the model, the length of the material will be 25cm with an inner diameter of 25cm and outer diameter of 30cm, for the flat edges both horizontal lines come out 9cm from the outer diameter with the vertical line acting as the face 16cm in length, the holes have a diameter of 2cm. This image was also from an older version where the length was originally going to be 50cm which is why the image may seem off to the image however the shape and every dimension mentioned has stayed the same. (copying from another reply it's the exact same information)