Hello Thinking, this wig is about 40 cm, and yes, you can make the wig style after received it.
**it will be packed with the basic style using a wig bag, after you receives it, just use some hair styling clay to fix the style will be okay. n_n
*We pack the wig with basic style (like: no spikes, pony tails will not clip on the wig directly but put flat together; wavy & curly style are still the same) to avoid style destroyed during international shipping process. d(^_^)