Set ID to ion-toggle

In one of my pages I tried this to set a dynamic ID to each element of the list:

      <ion-item *ngFor="let element of elements" #item>
        <ion-icon name="add" ></ion-icon>
        <input  class="text-center" id="{{element.ID}}" >
        <ion-icon name="remove" ></ion-icon>

I set the ID in this line:

<input class="text-center" id="{{element.ID}}">

But if I try this with ion-toggle it doesn’t work:

      <ion-item *ngFor="let element of mant" #item>
        <ion-label color="holiday">{{}}</ion-label>
        <ion-toggle   id="{{element.ID}}" color="holiday"></ion-toggle>

This is an example of the output that I’m getting:

I was trying in:

But it was in: