Hi. I'm trying to find particular bud tips, same as the clear tips on these http://www.amazon.com/Shure-E2-Sound-Isolating-Earphones/dp/B0000CE1UO/ref=pd_sbs_misc_4
 
These are mine and need to buy more of these bud tips
http://s22.postimg.org/fbcvu6z1t/IEM1.jpg
http://s22.postimg.org/cvb2gcgz5/IEM2.jpg
 
The material is much firmer and thicker than most buds, almost like very flexible plastic, which I like. I guess they'd be called hard silicone. I got a packet of them years ago in medium and large from a shop that doesn't exist anymore and have used them all up. These ones on amazon look like them
 
http://www.amazon.com/Pair-Shure-Clear-Medium-Replacement/dp/B00530ZHW8
 
 
But according to one review they're very flimsy, so I'm not sure if they actually are the same ones. Can anyone tell from my pictures and the ones for sale if they're the same or where I can get some that will be suitable? Or even completely different ones that aren't flimsy?
Thanks.
 
 
Or maybe it's these? http://www.ebay.co.uk/itm/10-x-SHURE-PA757M-Medium-Flex-Sleeves-for-E2c-E2g-i2c-QuietSpot-SCL-SE-earphones-/221089132368?pt=UK_AudioVisualElectronics_HomeAudioHiFi_Headphones&hash=item3379f06f50