Swarovski doubler (compatibility info added)

$175 shipped. 
Compatibility info from Swarovski:  The Bino Booster (Doubler) is compatible with all pre-HD SLC and EL Models except the SLC 8x30 WB. 

Pre-HD Models of the SLC will have serials starting with a "D".
All pre-HD Models of the EL will have serials starting with an "L".

Includes a soft neoprene case with belt loop.  Made in 2007. Optically brilliant and  comes with two extra adapter rings.