4 different dimension for Metal Outbow:

> 115*70*28mm

> 115*70*28mm

> 86*50*28mm

> 86*86*28mm

Regarding 86*86mm Metal Outbow, We have 3 different types:

> 86*86*28mm

> 86*86*35mm

> 86*86*42mm ( ODM customized for Mirror surface only )

Back Box for Exit Button, the following 5 types available:

> Zinc Alloy Mounted Back Box - Frosted surface

> Zinc Alloy Mounted Back Box - Mirror surface

> Fireproof PC Material Mounted Back Box

> Plastic Mortise Back Box

> Plastic Mounted Back Box

1.7mm Thick 304 Stainless Steel (Wire Drawing) IP67 Waterproof Exit Button,

It need to configure 86*86*42mm size Metal Outbow.

Such as Model: 

EB-SW40,EB-SW50D, EB-SW70D, EB-SW80D

EB-SW40L, EB-SW50L, EB-SW70L, EB-SW80L etc 8 different model 

https://www.s4a.com.cn/list/?119_1.html