As the original turnbuckle lane line tensioning device on the market, the Supertensioner doesn't merely set the standard for quality and dependability, it is the standard. From its ease of use to its simple yet rugged design, the AntiWave Supertensioner is a state-of-the-art solution to the age-old hassles associated with the traditional drum and ratchet systems. • Easy to adjust - All you need is a few twists of the wrist - Even kids can operate this system safely! - No ratchet mechanism means there is no wrench to lose - Sleek, stylish and trouble-free every time • Can’t be accidentally released - Ratchet-type tensioning devices can be “tripped” accidentally - Lock-nut feature keeps tension securely • Will not fray the cable - The body of the Supertensioner rotates around the cable - Removes fraying cable/safety concerns - No need for 'safe' plastic coated cables • Eliminates hassles when reconfiguring pool lanes - Get lanes in and out of the pool in a matter of minutes • Comes in a wide range of standard color choices - Suit your pool's theme or display your team colors • Can be used on existing lane lines - Designed to fit any lane line using 1/8-inch cable • Manufactured in our plant in Sanger, Texas • Comprehensive 3-Year Mfr. Warranty Made in USA