http://www.petedge.com/
The above link will take you to the PetEdge site.. Look under Item# WA120, Wahl Super Pocket Pro.. They run $16.99 without shipping added.. They work perfectly for trimming yorkies ear tips, bottom of the feet and the potty area.. You can also purchase similar ones at PetCo, they are also made by Wahl and run $19.99.. Hope this helps..