Material:plastic Bead diameter:7mm Type: For roller blinds,vertical blinds,zebra blinds,shangri-la blinds. Colour:various Specifications: Name:Roller Shutter Components-thick cord bead ball,plastic chain for Zebra Blinds and Shangri-La Blinds.Model No.:Yazhi-019Type: Used for roller blinds,vertical blinds,zebra blinds,shangri-la blinds