Sim Small Injection Pad Paddy, Designed for the practice of needle injections, Can be used to simulate intradermal, intra-muscular and subcutaneous injections, Has drainage on the bottom so it can be used with fluid filled syringes, Measures 2.5x2.5x1.75in
Double Convex round Lens, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, for educational uses, Size: 100mm focal length, 2in diameter and 8mm thick