Our tub is made out of High Density Poly Ethylene (HDPE), The same thing many truck bedliners are made of. It is very durable.
Our tub is 3 feet long, 2 feet wide and 1 1/2 feet high.
The tub comes with a 25 ft. long hose, a spray shower head with on/off button, a metal eye-bolt where you can attach a restraint collar if you choose, a faucet adapter that works with many indoor faucets so you can use the tub indoors, a drain that comes with a cap so you can let the water build up in the tub if you choose, and a drain cap with holes that helps to keep hair out of your plumbing.
We have washed everything from St. Bernards to tiny lap-dogs in the tub. The golden pooch in the photo, our beloved Holly, weighed about 85 lbs., and she fit very easily.