Standard Inset Interior Bullet Resistant Window 18" Shelf remove
Description: Part Number: S11W18A 
Standard Inset Interior Window With 18 Inch Shelf / Deal Tray / Surround Sound.
Satin Anodized Aluminum Standard Inset Frame Interior Glazed Exchange Window with 12" or 18" Shelf and Deal Tray, Standard Inset style frame easily slides Into wall opening, Surround sound system allows natural voice transmission. UL Tested Levels 1-4 Made In the USA.