Length: about 15 - 20 cmWidth: 16 cmColor: red + greenMaterial: plasticIt provides a beautiful decoration for your aquarium， also is an excellent hiding place for fish which adds extra fun to play.They are made from durable plastic， and suitable both in salt and fresh water.Note: They are plastic products， they will have smell when receive， then soaked them in water for 2-3 days and smell will disappear.