Pull chain extension (Ceiling Fan Chain Extender): Reflects beautiful colors under light, creating a rainbow effect in your room. Ceiling fan pull chain (Diamond Extender Pull Chain): Suitable for different ceiling fans, including those used for ventilation and for ceiling lights. Crystal fan pull chain (Crystal Fan Pull Chains): Crystalstyle design beautifies the interior environment and enriches color in your home. Pull chain for ceiling fan (Extender for Ceiling Light): Simple snap the chain into your existing ballchain connector on your fan. Extender for Ceiling Light. Key benefits Enhances aesthetics: adds colorful reflections and a rainbow effect when light hits the chain. Broad compatibility: designed for various ceiling fans, including fans for ventilation and ceiling lighting. Easy installation: snaps into your fan's existing ballchain connector without tools. Decorative yet functional: combines practical pull operation with a stylish, crystal/diamond aesthetic. Use scenarios Living room upgrade: install on a ceiling fan or ceiling light to create a subtle, colorful ambiance that complements decor. Bedroom or quiet spaces: add a crystalstyle pull chain to introduce decorative lighting effects without changing fixtures. Replacement or retrofit: swap worn or plain pull chains on existing fans with these extenders for improved look and function. Note: Please allow 1-3 mm error/1-3g weight error and actual product color may vary due to lighting conditions.