Dynamic Sedimentation Demonstration: The Scientific Geology School Teaching Aid features an interactive mode that vividly showcases topographical sedimentation and structural formation Lightweight Construction: Designed as a Deposition Demonstration Device, this model is crafted from high-quality synthetic resin, ensuring exceptional sturdiness while remaining Comprehensive Terrain Coverage: This Geography Teaching Aid includes detailed representations of essential geological features such as sea-floor formations, mountains, and river Detailed for Clear Display: Measuring 22.83 x 14.57 x 5.91 inches, this Scientific Geology School Teaching Aid offers a large and sufficiently detailed display that allows both students Service:We attach great importance to our customers' shopping experience. If you have any questions, please feel free to contact us, we will reply you as soon as possible within 24 hours