Sprenger: Stainless steel spring designed for Micro XS pulleys.

Stainless steel spring designed for Micro XS pulleys.

Low weight of 3 grams.

Suitable for:
- 420
- 445
- 470
- 485
- 490
- 505
- Cadet
- Contender
- Europe
- Flying Dutchman
- Finn
-Fireball
- Coralle
-Korsar
-Laser
-Lightning
- Marauder
-Moth
-Open 5.00
- Open 5.70
- Optimist
- Pirate
- Ponant
- Topper
- Rascal
- Windy