The procedure is like this.
After the buyer places the order and submits the wearer's measurements, it takes the workshop 8-9 days to make an adjustable sizing mold. The sizing mold's appearance is similar to the final chastity belt but made of hard plastic and it is not one piece. The wearer needs to put several pieces together and assemble them to put on and adjust them until it fits the wearer perfectly. Send the workshop several pictures of the wearer in perfect fitting status. Based on the pictures, a 3D printer will print out the final chastity belt. If it still doesn't fit, the wearer gives feedback on how he/she wants the final printed belt to be modified! That is how the sizing mold works to ensure the final belt fits buyers perfectly!