Aftermarket chain slides. Has anyone tried one of these yet?

[hadar]

http://cgi.ebay.com/ebaymotors/NEW-83-84-HONDA-ATC-250R-CHAIN-SLIDER-_W0QQcmdZViewItemQQhashZitem19bb300e63QQitemZ11051 4671203QQptZMotorsQ5fATVQ5fPartsQ5fAccessories

Seems like a good deal and all but I kind of wish it wasn't a split design.