You are looking at a handmade essential hold diffuser in the form of a Redbird. This measures about 4 1/2" long x about 3 1/4" tall x about 2 1/4" wide. I made this cardinal in an almost cartoon figure and it is hollow with clay beads for essential oil to be added. There is also a rubber stopper on bottom to keep the beads inside. If you have any questions please contact me and thank you for looking.