g'day june,

you can make your own i have a pic of one i made on my site, you can
use those polystyrene boxes from the fruit n veg places, old bath tubs
can be used, so when it comes to manufactured ones they will all work
how well may depend on how many worms they can carry.

for me now i cut out the middle man and my gardens are my worm farms
too easy.

len



snipped
With peace and brightest of blessings,

len

--
"Be Content With What You Have And
May You Find Serenity and Tranquillity In
A World That You May Not Understand."

http://www.users.bigpond.com/gardenlen1