The Collar Locking Inside Small Unger is a key replacement part for the Unger Opti-Loc Extension Pole, designed to maintain the pole's functionality and ensure it locks securely during use. Compatible with both 2-section and 3-section models, this durable collar restores the secure locking mechanism, preventing the pole from collapsing and improving safety. Ideal for professionals and DIY enthusiasts, the Collar Locking Inside Small Unger is an easy-to-install, cost-effective solution to extend the life of your Opti-Loc pole.