Here is a basic Flexi all belt leash:
Flexi Comfort Retractable Dog Leash - Dog - Collars, Tags & Leashes - PetSmart
Priscilla, Capt Noonie mentioned something about the small size being too small for her hand. Try asking her if she uses a medium or a different style. I know there is some variation on grip size between the different style Flexi leashes.