Not our customers do not buy. only for our customer This is for the Smart life version curtain that we selling, not for other versions. If you buy from other sellers, this not suitable.10pcs/packThe Curtain Rail Roller Hooks Holder is an accessory for our smart curtain system. These roller hooks are designed to seamlessly integrate with our smart life version curtain rail to provide a smoother and more efficient curtain opening and closing experience.