The YakAttack Stealth Pulley is engineered to be the most quiet, low profile, shielded, and snag free pulley ever created for kayaks. Designed for use with anchor trolleys but great for many other applications. Teflon infused, wear resistant nylon rollers offer quiet, smooth operation and extreme durability for a lifetime of use. The shielded, snag-proof housing protects the rollers from docks, stumps, and other obstacles you may encounter on the water. 2 Pack Hardware Included Features same hole pattern as Hobie and Harken pulleys Made in the USA Covered by our Built for Life Guarantee SKU:AMS-1011