Sailing Calibration Stickers -Pack of 2

Ronstan Calibration or Indicator stickers come in a pack of 2.

Calibration is used for a measuring scale

Length: 230mm

They are used as reference marks on the halyard, jib lead, or main traveller to ensure that sails are raised to the same position consistently.

Monitoring this whilst sailing will affect sail shape and performance.

Printed red on white waterproof vinyl with an adhesive peel-off back.

Ensure the surface is clean before application.