ACKKK
those are evil. Evilevilevilevilevilevil
They don't give the tea enough room to expand so the tea does not taste as yummy as it should. Get a cup infuser.
I use Polident to clean my basket infusers. The denture cleaners are built to remove stains from dentures and work really well on tea and coffee gear.
http://shop.tgtea.com/store/product/...ent-Teafilter/
http://shop.tgtea.com/store/product/...iner-w-Handle/