Hello Cindy, thanks for your message. (n__n)
1. These stockings are fixed size while the largest size of the top is 50cm around.
2. We don't include sock glue for these stockings, but you can use the sock glue when you wear it.
3. Yes, these stockings can be ready within 1 week (we will back to work around 25th Feb.), plus 2 weeks Chinese New Year delays, so if you only order the stockings before 25th Feb. and use the Premium Express Shipping (3-6 days shipping time), it will able to reach you before April.
4. The actual stockings are just like the product photos shown.
5. These accessory is only available when order size is US$50,
you can buy it separately, but the unit price will be high (because the international shipping cost), please submit ticket (with product link & request) to our Support Center and let my teammates help you directly.