Product DescriptionAir-Flow Tels
Lightweight, ripstop nylon Air-Flow Tels attach to sails with waterproof adhesive locator discs. No holes required. Tels show the air flow across the sails - allowing you to trim sails for maximum performance.
Each kit includes 14 Tels and full instructions on where to apply them and how to read them.
Manufacturer : Davis Instruments
Manufacturer Part No : 950
UPC : 011698009503