1Dyeing treatment, the structure is clear and easy to see. The structure, parts and organs shown are obviously colored, clear and uniform. 2Each slice is rigorously tested by a professional to ensure the quality of the slice. 3Made of high quality optical glass, clean, clear and translucent. 4The edge of the slide is polished, no damage to the hand, safe to use. 5Use high-strength plastic box with thick edges and built-in shockproof sponge to ensure the quality of the slide.
