These decorations are made of polyresin and can be safely used with fish and plants

A Size: Length 11.5 * Width5.5 * Height10 (unit is centimeters)

B Size: Length 12.5 * Width 7  *  Height 8  (unit is centimeters)

C Size: Length 22.5 * Width7.5 * Height15 (unit is centimeters)

D Size: Length   24  * Width8.5 * Height14.5 (unit is centimeters)