Unfortunately that wood is not safe, The only safe wood is Grapevine as others have sharp edges/tannins.

I use this :https://www.amazon.com/Exo-Terra-Forest-Branch-Small/dp/B0032GG7M4/ref=sr_1_1?dchild=1&keywords=forest+branch&qid=1629997157&sr=8-1

Any size is fine, you just have to bake it for 30 minutes at 200 degrees Fahrenheit