I like the way it fits inside a coffee can for extra protection. Do you know where I can buy several new ones like this one? If not let's see what you use. Thanks!

You could go to a canvas shop,say that does work on boats and get them to make you a few for probably cheaper...they can do any style of fabric's and material's they got the gear 🙂
Depends where your at....
Maybe an option for you...
Yellow bags are usually from Trimble.
Just Cut Up Some Stove Pipe Blue Jeans...
Two pair, about 3 sizes apart, for an inner and outer bag.
Sew in a double layer bottom with a coffee can lid against the bottom and foam over that. Coffee can lid not required for inner bag. Foam between bags.
Cinch top is simpler but a drum type top allows a top foam layer.
I think it would be cheaper and simpler to get the small plastic paint containers and line with foam.
Paul in PA
Just Cut Up Some Stove Pipe Blue Jeans...
A lot of yellow bags are from Topcon or SECO, but I haven't seen the round ones in decades.
Just Cut Up Some Stove Pipe Blue Jeans...
I use two square 5 gallon buckets with foam rubber glued to the sides. The entire tribrach assembly with 360° prism attached fits nicely into it with about 3 inches to spare. Somewhere in the truck I still have the lids, but don't use them. There is about 3 inches of foam padding in the bottom, the side foam protects them from shifting and to date they have not had to be adjusted in two years.