Comes in bright orange, bright yellow, or 1/2 hot pink- yellow.
Loon's bright colored Bio strike is a very creative type of indicator. It has the consistency of light weight wall putty. Once open, you can take any amount of material you want and you can roll it on to your leader/Tippett. I find it works best rolled like a tapered sausage right over your knot. It is pretty sticky so it stays on well. But I feel placing it on top of your knot seems to work best. You can adjust it but you need to roll it in your fingers some to warm it up.
Personally I always have some in my vest as it weighs virtually nothing and I consider out as backup.
Floats like a cork. Easy to see! Defiantly helps you see the take.