The 3D object I would describe is a curtain that is designed specifically for shower areas, known as a shower curtain. It is typically made of a waterproof or water-resistant material like plastic or fabric with a special coating to prevent water from seeping through. When fully extended, the shower curtain takes on a rectangular shape and hangs vertically to cover one side of the shower area, providing privacy and preventing water from splashing outside the designated bathing space. It is typically suspended from a rod or hooks attached to the ceiling or wall. The shower curtain may feature various designs, colors, patterns, or motifs, serving both functional and decorative purposes. Overall, it is a fundamental element in bathrooms that enhances the bathing experience while maintaining cleanliness and privacy.