The height of the fabric roof is adjustable.

Start it off high, then as your dog is crawling through to the other side you can lower the roof even more.

Before long your dog will become so confident in crawling that he might voluntarily offer to crawl under your bed to retrieve your slippers!

Crawl Tunnel Features:

Frame made from furniture grade 1" outer diameter pipe (3/4inch inner)

Fabric roof is made from waterproof rip-stop nylon Includes 4 internally sleeved rods for the fabric roof support

Roof adjusts to heights of 24, 20, 16, 12, and 8inch.

Assembly instructions included (can easily be taken apart for portability)

When assembled, measures 75" long by 33" wide and 33" high