Size Chart: 35=22.5cm. 36=23cm 37=23.5cm. 38=24cm 39=24.5cm. 40= 25cm FEW SWEET REMINDERS -Products are cheap, So NO RETURN, NO EXCHANGE!!! Except damaged or wrong item. - WE SHIP OUT ORDERS within 3DAYS! -Free shipping/COD via Ninjavan above 500p - NO RUSH BUYERS/SHIPPING, free shipping takes time. We are not responsible for shipping delays caused by the courier. -No cancellation of order(s), once the status is already for shipment.