I want someone to make me a device in a circular shape that tightens and releases by my control and it must have a hollow fro merge inside wich decreases when it tightens as if something in the middle it wants to secure and can release by my control -- 2

We are going to integrate part of the hair in the middle of the circle then by a controller or threw mobile phone it starts tightening to secure the hair in the middle of it so it should be very small like we might need 15 of that circle device to secure all the hair should be very small