Astutes own Poly Vee strike indicators
These yarn indicators are very popular as an alternative to stick on or push on indicators, which we have available in our other listings. This may possibly be because they are not only fitted and removable without much trouble but also adjustable to an alternative position on your leader when circumstances dictate. 
The yarn is securely attached to your line via a strong plastic round link. Instructions are simple.
1. Double the leader and insert through the indicator ring. 
2. Pull the doubled leader loop over the yarn
3. Tighten the loop till secure on the ring 
The Poly Vee yarn is available in two sizes small and large and comes as a pack of four, one of each colour: white, green, orange, and red. This should be able to cope with most light scenarios whether fishing during bright sunshine or casting a line at dusk.
These are sent first class using Royal Mails Large letter facility on the same day as your purchase if ordered before 3pm on any working day, Monday to Friday Inclusive.