Careband™ Sheer Adhesive Strip, 3 8 x 1 1 2 Inch, 1 Case of 1200 Anatomy Charts they're an economical alternative to 8975 they're an economical alternative to OK® strips but use the same reactive ink as an OK strip The ultimate in comfort and performance for PAP therapy * Maximizes compliance by using a soft silicone cushion with frame stabilizer that redistributes pressure evenly over a large surface area * The 100 FD series of masks conforms comfortably to the user's face without the need for forehead pad allowing the user the ability to read watch TV and feel less confined during PAP therapy * Sturdy but sheer plastic is extra tough and durable Adhesive strip seals out dirt and germs for quick healing