You must be logged in and verified to contact the designer.
Diameter (inner) 70 mm
Any other diameter can be made available by sending an email to Harri@VLDesign.nl
To find the right size: measure the circumsphere of your fist and devide by 3.14
Eg. 22 cm / 3.14 = 7.006 cm (so: 70 mm is the right size)