4 Way Locking

No in & No out( Fully locked)

Free in & Out( Fully open)

Outer Frame Diemension

S: 20*19*2cm / 7.87*7.48*0.79"

M: 20*19*5.5cm / 7.87*7.48*2.17"

L: 25*23.5*5.5cm / 9.84*9.26*2.17"

XL: 28*25*5.5cm / 11.02*9.84*2.17"

Inner Frame Diemension

S: 14*15cm / 5.51*5.9"

M: 15*16cm / 5.9*6.3"

L: 18*19cm / 7.09*7.48"

XL: 20*21cm 7.87*8.27"

NOTE

1, The outer thickness of L Thin and XL Thin is 3cm, inner is 2cm.

2, Size S is a little different from other sizes. It's "thinner".