There's a pocket at the bottom, so you can put warm or cold items in it! There are no plans to sell small animal supplies in the future, so this is the last piece. It sells out in the winter, so please consider purchasing it early ⋆⸜♡⸝‍⋆ String... about 13cm Height... about 14cm Width... about 14cm Entrance diameter... about 10cm Small size I also have other small animal products for sale. Please take a look if you'd like (❁ᴗ͈ˬᴗ͈) This is a handmade item by an amateur, so there may be some shape irregularities. Please purchase only if you don't mind (；；) ⚠︎︎ Compressed shipping