Product details CeramicNature produces round breeding caves in 4 different sizes and 2 different colors. Small round caves measure 9.5 x 4 x 3cm. Medium round caves measure 12 x 5 x 4cm. Large round caves measure 14.5 x 6.5 x 4.7cm. XLarge round caves measure 19.5 x 7.8 x 6cm.