1. PU material, excellent permeable, waterproof, improved infection control,patients can be bath; 2. Transparent film, easy observation; 3.Unique design for fix catheter,laminated with non-woven border, more secure; 4. Round corner for avoide curling; 5.Attached with the adhesive tape for easy recording and fix; 6. Attached with adhesive non-woven tape for fix catheter, more secure.