Features: This self-adhensive electrodes for model SD-C02-5 use only. Applying to snore stopper, aids to get better sleep. Made of quality material, no stimulation, safe for your skin. Self adhesive, high adhesive, convenient to use. Useful and safe accessory for sleeping aid equipment. Note: Cleanse your skin before using electrode pads for better results. Specifications: Item Type: Electrode Pad Material: Non-woven Material Qty: 1pcs, 3pcs, 5pcs, 10pcs(optional) Package Size: 78*46*3mm/3.07*1.81*0.12in(1pcs) ? ? ? ? ? ? ? ? ? ? ? ?80*60*20mm/3.15*2.36*0.79in(3pcs) ? ? ? ? ? ? ? ? ? ? ? ?100*80*30mm/3.94*3.15*1.18in(5pcs&10pcs) Package Weight: 3g/0.11oz(1pcs) ? ? ? ? ? ? ? ? ? ? ? ? ? ? 9g/0.32oz(3pcs) ? ? ? ? ? ? ? ? ? ? ? ? ? ? 15g/0.53oz(5pcs) ? ? ? ? ? ? ? ? ? ? ? ? ? ? 30g/1.06oz(10pcs) Packing List: 1/3/5/10*Electrode Pad