This is our small standard insert complete with corals fully affixed to rockwork as shown. Very durable and lifelike. will not break under normal use. coral colors can be changed if you would like.  This measures 10x7x11 inches tall. If you want it plug n play style where the corals are removeable, please put that in the notes upon checkout! You can purchase other corals separately if you'd prefer a different set.  Please call or email us with any changes if desired. also rock can be a different color. This measures 10x7x11 inches tall.