I have 3 (two in the stable and one on the lorry). My mare loves them, think she may be part budgie!!!
I brought mine off ebay one is stainless steel so not a shiny, and the other two are Acrylic (brought these from the gardening bit, as were the same but cheaper than those on the equestrian bit).
Hi, I have one in my stable and one in my trailer. The one in the stable was bought first as she had to stay in for a month a couple of years ago and it worked!!! as she hates being in on her own. She is in a barn type stable.
This worked so well that I bought one for my trailer as she is a bit of a finnicky traveller. This works a treat.
The one in the stable isn`t as effective now I think but she is out all day and has calmed down a lot so its still on the wall.
I got mine from a local factory, it is just a piece of aluminium about 3ft x 4ft in the stable and 2ft square in the trailer. They just cut it to size for me.
I got mine off the internet, but off a site I have since heard lots of bad stuff about so wouldn't recommend them. I don't rate mine mine very highly but then I have a big 16.2 who gets so worked up in the stable whether she has company or not so doesn't really keep her calm. I have seen her looking at it occasionally but she still box walks and gets very agitated if in on her own!