My wife got one a few years back and I tried it a few times and I am not sure what the point is. Maybe I am beyond such things. It is still here and never used. 
		
		
		
		
		
			
				__________________ 
				Nov 07: STALIF Fusion L5/S1 ACTIV-L ADR L4/L5 
Nov 09: Prodisc-C ADR 2 level C 4/5/6
			 
		
		
		
		
		
	
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