FRED L Harvey,
At this time of year all of my dive equipment is packed away and I can not get to the tank weight pocket to give you dimensions.
However, I can tell you that when I strap it on to an aluminum 80 it has room to easily take a 2 lb soft weight. I am not sure I have ever tried to put two of those weights in it, but suspect I can. I will see if I can unpack enough equipment to get to the pocked and get you a better response
THERESA B 16CM X 12 CM, approx. 6" X 5"
DAVID W I don't have the exact dimensions handy, but it is a 2" strap, and the pouch will hold a couple of 3 lb shot bags.
I use this if I am wearing a 7 mil wetsuit to put some of the weight behind me instead of in my BCD. It helps me sit better in the water at the surface.
JIM A It is about 5.5" wide by 5" tall.
MARK D Outside dimensions of the weight pouch are 6" wide by 5" tall. Appears to be about 5mm neoprene so inside dimensions are somewhat less. Tank strap is 28" long (fully extended) with an adjustable clamp to fit smaller diameter tanks.