### Default:
```js
  <QuickAddSizes
    onClick={(sku) => () => { console.log(sku) } }
    variants={
      [
        {
          "id": 17350,
          "sku": "5591-521-L",
          "size": "6",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17351,
          "sku": "5591-521-N",
          "size": "10",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17352,
          "sku": "5591-521-I",
          "size": "4",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17353,
          "sku": "5591-521-E",
          "size": "8",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17354,
          "sku": "5591-521-M",
          "size": "7",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17355,
          "sku": "5591-521-H",
          "size": "3",
          "price": 22.5,
          "cost_price": null,
          "in_stock": false
        },
        {
          "id": 17356,
          "sku": "5591-521-O",
          "size": "12",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17357,
          "sku": "5591-521-K",
          "size": "5",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        }
      ]
    }/>
```

### Loading:
```js
  <QuickAddSizes
    loading
    onClick={(sku) => () => { console.log(sku) } }
    variants={
      [
        {
          "id": 17350,
          "sku": "5591-521-L",
          "size": "6",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17351,
          "sku": "5591-521-N",
          "size": "10",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17352,
          "sku": "5591-521-I",
          "size": "4",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17353,
          "sku": "5591-521-E",
          "size": "8",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17354,
          "sku": "5591-521-M",
          "size": "7",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17355,
          "sku": "5591-521-H",
          "size": "3",
          "price": 22.5,
          "cost_price": null,
          "in_stock": false
        },
        {
          "id": 17356,
          "sku": "5591-521-O",
          "size": "12",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        },
        {
          "id": 17357,
          "sku": "5591-521-K",
          "size": "5",
          "price": 22.5,
          "cost_price": null,
          "in_stock": true
        }
      ]
    } />
```