Your link doesn't work for me, but I looked it up at Vaporkings.
Joye eGo-C Type A atomizer base and cone - Genuine Joyetech!
Is that it? If so, you're out of luck, sorry. This is an atomizer base, not a cone for an eGo battery, and it won't work as a cartomizer cover. It only works with eGo-C type A atomizers and type A tanks.
I don't much care about the looks of my PVs (as long as they deliver the goods) and I stopped using cones a long time ago. I suggest you buy a pink cone or a stainless shorty cone that just covers the threads on your battery and matches the eGo Twist's silver band. I've seen them at madvapes.
Silver eGo Shorty Cone
That was so nice of you to look it up for me! The shorty will help and I'll get one of those.
Have a great day!