The planet Uranus would have no holes. Uranus's composition is around 83% hydrogen, 15% helium and 2% methane. These are all gases and Uranus is basically a giant atmosphere. Therefore, without a surface, Uranus wouldn't have any holes.
Uranus is a huge icy planet is covered with clouds. Uranus' mass is about 8.68 x 1025 kg. This is about 14 times the mass of the Earth. Uranus is a frozen, gaseous planet with a molten core. Uranus' atmosphere consists of 83% hydrogen, 15% helium and 2% methane