Question about Apple Watch Series 7

What's the strap lenght size for the Item 16753061 - Apple Watch Series 7 /45 mm, Aluminium, 4G? In the descrption says one size but on apple website there`s two options to choose... What is the strap length for the item 16753061 - Apple Watch Series 7 /45 mm, Aluminium, 4G? In the descrption says one size but on apple website there`s two options to choose...