Yeah i have to agree with fuscus.
I have seen thousands of tigers nakes over the years while fishing, and the amount they vary in colour is incredible. Some of them have been almost completely black with faint yellow bands, and others have been grey with very distinctive black bands.
Usually about a meter, but i have seen them up to 1.5 meters quite a bit, including one big one i saw recently. They have poor eyesight, and dont always get out of the road when you approach them, and as a result have led to quite a few "nervous moments" on the river banks over the years!!!!