REDUCED : Through the window, your of It can help stop excessive since the dog see what they smell or hear just outside the fence. DESIGN: It's a , clear, hard acrylic dome 12.99inch diameter, with a black and all necessary hardware for easy DIY installation into your wooden or fence. EASY TO INSTALL: Come with bolts, nuts for fixing. It is fencing, fencing, wood and wall. Cleaning is also very easy. WIDE APPLICABILITY: The window is shaped to fit muzzle nicely and for backyard fence. It also has other ideas for usage include dog kennels, henhouse and even playhouses for children. Color: Black & Silver Material: Acrylic+Metal Package Contents: 1set x Pet Window Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.