The set contains 4 wood stripe stainless steel D-ringsnThe patch is made of PVC and the D-ring is made of 304 stainless steelnProduct dimensions: Patch 4-1/4 in; D-rind 1-1/2 innSuitable for PVC inflatable boats, rafts, dinghies, kayaks, stand up paddleboards (SUP) and etc.nSturdy and long-lasting. Also a great way to decorate your equipmentnThe set contains 4 wood stripe stainless steel D-rings. The patch is made of PVC and the D-ring is made of 304 stainless steel. Product dimensions: Patch 4-1/4 in; D-rind 1-1/2 in. Suitable for PVC inflatable boats, rafts, dinghies, kayaks, stand up paddleboards (SUP) and etc.. Sturdy and long-lasting. Also a great way to decorate your equipment.