This lore book shows the average sizes of bad dragon dildos. I didn't calculate it myself, but asked chat gpt to do it based on a spread sheet, as it couldn't read the site directly.

Here are the recalculated measurements, including the usable length for each size:

Extra Small (XS):

Usable Length: 4.15 inches

Head Circumference: 5.65 inches

Shaft Circumference: 5.65 inches

Small (S):

Usable Length: 5.50 inches

Head Circumference: 6.44 inches

Shaft Circumference: 7.23 inches

Medium (M):

Usable Length: 6.50 inches

Head Circumference: 7.85 inches

Shaft Circumference: 9.42 inches

Large (L):

Usable Length: 8.50 inches

Head Circumference: 10.21 inches

Shaft Circumference: 11.78 inches

Extra Large (XL):

Usable Length: 10.75 inches

Head Circumference: 11.78 inches

Shaft Circumference: 13.35 inches

Let me know if you need any more tweaks or further analysis!