This is a gastrostomy tube cover set. The bottom fabric, which touches the skin, is a soft smooth knit. The middle layer is a 3mm thick domette wadding. The top fabric is made of cotton, creating a three-layer structure. This is the thin A-type. As it is handmade, there may be some slight variations, but it is made to be about 7cm in diameter. It will be about 6cm when worn. Thank you! #Gastrostomy #G-tubeCover #G-tubePad #PegCover #NursingCareSupplies #Handmade #MedicalCareSupplies