Standard TeleGizmos TGR5 Solar Scope Cover for mid-size/large GEM mounted tubes up to 114cm in length.
Reflective aluminium outer with bungee type draw cord around it's base.
Details here:
http://www.telegizmos.com/index.html
http://www.telegizmos.com/GEM%20ALT%...r%20Covers.htm
Again, only used a few times.
Definitely as New.
Looks like you can get these on au eBay for about AU$63 including shipping.
Asking $43 including postage in Australia.
PM me if interested,
gb.