6w Round: Front-11.8cm Hole(10.5-11cm) Height-1.5cm
9w Round: Front-14.6cm Hole(13.3-13.8cm) Height-1.5cm
12w Round: Front-16.8cm Hole(15.5-16cm) Height-1.5cm
15w Round: Front-19cm Hole(17.5-18cm) Height-1.5cm
18w Round: Front-22cm Hole(20.5-21cm) Height-1.5cm
6w Square: Front-12cm Hole(10.5-11cm) Height-1.5cm
9w Square: Front-15cm Hole(13.5-14cm) Height-1.5cm
12w Square: Front-16.5cm Hole(15.5-16cm) Height-1.5cm
15w Square: Front-19.3cm Hole(18-18.5cm) Height-1.5cm
18w Square: Front-22.5cm Hole(20.5-21cm) Height-1.5cm
