RINGTRODE allows easy placement. Hypoallergenic hydrogel combined with Ag/AgCl sensors provides reliable stable tracings and saves in cleanup time. Small round shape allows adhesion to body. Hydrogel is ideal for sensitive skin, offers great adhesive properties with easy removal. Dimensions: 0.7" diameter round / standard snap connector Packaging: Total of 100 hydrogel pads/10 gel pads per foil pouch/10 foil pouches per bag. Total of 50 blue snapon ringtrodes per bag.