【Various Contents】It includes human tissues, insect and plants cell, bacteria, 50 pieces in total, easy to focus under different magnification of microscopes.
【Thickened Package】Thickened protective box, not easily deformed, discoloured, durable, moisture-proof and fully protected from any damage.
【Round Edge】Removing the sharp edges and not scratching hands for kids and adults.
【Worldwide Warranty】100% REFUND GUARANTEE: You are protected by a lifetime refund guarantee with first class customer service! If there is any questions, please do not hesitate to contact us. We will reply you within 24 hours.