Length and packaging: the vertical blind chain is 20 meter, wrapped in a white plastic shaft with 5 pack plastic chain connectors Details of blind chain: links blind chain fit for 3.5 inch/ 89 mm slats, 12 balls in between each clip of blind chain, 20 meter chain approximate 200 links clip Size of blind chain connector: the length of the plastic chain connector is about 1.7 cm, and the width is about 0.7 cm; It is enough of 5 pieces plastic chain for the link connection Solid and sturdy: the blind chain is made of good quality plastic and is durable, the weight of these white plastic clips are enough to attach , it is not break down easily; It is easy to install Usage: by cutting chain and adding this connector, these roller blind beaded chain can be applied to replace existing connectors or make continuous looped chain safe