Plasdent 2-Well and 4-Well Bondwell™ Mixing Wells can be used with all dental materials. Prevent cross-contamination with these handy, disposable mixing wells in a convenient bulk package. Lettered and numbered wells prevent confusion when using more than one material. All come with a convenient slot for resting the applicator while not in use. White & Multi color wells available in both Well options. All come 200pcs/box.