Features: Human organs + bones + shape learning model, explore the mysteries of human body. Made of material, and durable to use. It will help you understand your body. Simple assembly method, play and learn. Learn the names and functions of human bone and organs. It can not only exercise hands-on ability, but also learn knowledge. Stimulate interest and learn to analyze and think in exploration and observation. Best STEM education gift. Specifications: Model: TXL-117TXMR-025TXMR-026(optional) Material: Package Size: TXL-117: 22.5 * 16.5 * 6cm / 8.9 * 6.5 * 2.4in TXMR-025: 25 * 25 * 5cm / 9.8 * 9.8 * 2.0in TXMR-026: 30 * 18 * 6cm / 11.8 * 7.1 * 2.4in Package Weight: TXL-117: 168g / 5.9oz TXMR-025: 208g / 7.3oz TXMR-026: 280g / 9.9oz Packing List: 1 * Model Kit