I washed and cut down an old tree in the garden that had fallen over, with the inside carbonized. Some parts are as light as cork. There's enough for one piece. The items in photos 2-5 are the largest, measuring about 26-17-18cm. There are many holes, which I think will be fun. Two of them are relatively heavy, but I don't know if they will sink. I soaked them in water for a while and dried them well. I will check them carefully before shipping, but small insects may be mixed in. Thank you for your understanding. Hornwood Terrarium Vivarium Paludarium Insects Reptiles