ITEM NO SIZE Weight/g Wings Usage SAP/g Pc/bag UItra thin Sanitary napkin(SAP paper) 245 7.5 2 Day Sap paper 20 265 7.6 2 Day Sap paper 20 280 8.8 2 Day/Night Sap paper 20 320 9.5 4 Night Sap paper 16 350 10.2 4 Night Sap paper 16 385 15 4 Night Sap paper 16 1. Cover: Cotton topsheet, perforated film or anti-bacterial cloth. 2. Absorbent core: Airlaid paper+SAP. 3. Fixing material: Hot-melt adhesive. 4.Back sheet: PE breathable and waterproof back sheet.