Size:  As size picture in "item diameter" option

There are below size available in option

D6cm with 2.2cm opening
D8cm with 2.2cm opening
D8cm with 3cm opening

D10cm with 3cm opening
D10cm with 4.2cm opening
D10cm with 5cm opening

D12cm with 3cm opening
D12cm with 4.2cm opening
D12cm with 5.5cm opening

D13cm with 5.5-6cm opening
D13cm with 6.5-7cm opening

D13.8cm with 5.5cm opening

D15cm with 3cm opening
D15cm with 4.2cm opening
D15cm with 5-5.5cm opening
D15cm with 5.5-6cm opening
D15cm with 6-6.5cm opening
D15cm with 6.5-7cm opening

D18cm with 5.2-5.8cm opening
D18cm with 5.7-6.3cm opening
D18cm with 6.7-7.3cm opening

D20cm with 4.2cm opening
D20cm with 5-5.5cm opening
D20cm with 5.5-6cm opening
D20cm with 6.5-7cm opening
D20cm with 7-7.5cm opening
D20cm with 8-8.5cm opening
D20cm with 8.5-9cm opening

D25cm with 8cm opening

for the single opening size like: D10cm with 4.2cm opening, the shipment maybe +-0.2cm difference, so 4.2cm should be 4cm to 4.4cm
,if you need the exact right size, please contact me befor order. Thanks