Thank you for viewing. I received this as a sample, but it didn't fit, so I stored it unused. Please consider purchasing only if you understand this. Exchange packs for stomas, 2 pieces per pack, with a replacement目安 of 2-5 days. - Model: TDc-36 - Replacement目安: 2-5 days - Effective stoma diameter: 31-35mm - Quantity: 2 pieces per pack Please check all the photos. Other accessories are not included.