material: FDA liquid silicone Size and shape : can be customized Product feature: 1???Silicone nose pads are probably the softest material nose pads available! 2???Silicone nose pads are also considered to be one of the few nose pad materials that are hypoallergenic, or non indusive of causing allergies to the exposed skin area. For its soft texture and grip, the silicone nose pads seem to be the popular choice for most doctors offices and opticians. 3???great price, best service ,Welcome your OEM order.