04-03-14, 08:01 PM 
		
	
	
		There can't be that much in it... only a few mm surely? The internal diameter is obviously the same, but the wall height is slightly larger but I can't see it being any more than maybe 4-6mm and given that they are silicone, they should have some give?
	
	
	
	
	

 
 

 

![[Image: 242673.png]](http://badges.fuelly.com/images/smallsig-uk/242673.png)
![[Image: 174802.png]](http://badges.fuelly.com/images/smallsig-uk/174802.png)