Single Ear Piercing Size: Approx. 7.5×4.5×1.7cm / 3.0×1.8×0.7in. PRACTICE EXPERIENCE: The size and feel of the silicone ear model is close to human skin, giving novices a more practice experience. EASY AND CONVENIENT: Silicone flexible ear model can be used without the help of a head mold, simple and convenient.