This replacement set includes pre threaded mounting screws and adapter rings for a great fit Simply turn off the water, remove the old handles decorative cap, unscrew the existing screw, and hand tighten the new handle Each handle features color coded indicators (red for hot, blue for cold) that wont wear off like printed labels The transparency acrylic design ensures visibility, accidental scalding and simplifying temperature control for seniors, kids, and guests Made from 5mm thick impacts resistant acrylic to yellowing and fading The high gloss, clear surfaces adds a luxurious touch to any bathroom, while the design prevents cracks from daily use This faucet handle set is specifically designed for standard D shaped Valved stems (1 / 4inch Stems size), providing easy installation for bathroom sink faucets, tub / shower Valved, and even vintage two handle kitchen faucets More than just a replacement, this set is a quick bathroom solution Use it to upgrade outdated handles, replace damaged or loose knobs, or matching new faucet fixtures for a cohesive look, Manufacturer: APGLSXY