OrthoTape Fiberglass Casting Tape 4 Inch X 4yrds. (1-roll) Our best tape ever. We worked hard to get the perfect tape for our customers. OrthoTape has incredibly vibrant colors. You will find the only way to get the colors to stay so true is to add more dye to the tape. This way the cast won't fade in color over time. Our patent pending Tack Control Handling™ allows maximum control while wrapping the cast so you don't drop the tape or it runs away. OrthoTape is strong fiberglass casting tape and conforms easily to the natural bends and curves of the body.