Features: A set of 16piece 17MM roller shutter head controller set, which can meet various curtain control needs. Durable and reliable;convenient and practical, Easy to install and operate for providing users with a comfortable living and working environment. Suitable for curtain control needs in homes, offices, hotels, and other places, it can be easily used by both the elderly andyoung. It can be widely used in various curtains, such as rolling curtains, vertical curtains, Roman curtains, etc., Specifications: Item: 17MM Roller Blind Accessories Size：As Pictures Quantity ：16Pcs/Set Package Includes: 1 Set 17MM Roller Blind Accessories note: Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks! Due to manual measurement, please allow error of 0-1cm. Please make sure you don’for t mind before bidding. Only the cooling fan, does not include other accessories in the picture.