i have not seen one like that before. but here in EL. i have seen ones that are made of a rubber/sponge/flotex type material. but the hooks do not slide into a cover like that instead the tip of the hooks , hook into the material. (they are cheap and work well) . i can go to the tackel shop after work and find out the name for you and you can see if you local tackle shop can get them, if you want.