The Life Saver • Classic donut shape with the resemblance of a life saver. Super comfortable. Here comes the life saver to your rescue! For maximum pleasure and comfort, use with water-based lubricants only. Clean with anti-bacterial soap and water. Sila-flex is a premium, phthalate-free hybrid silicone with an ultra smooth and soft finish. durable, unscented and extra stretch, while retaining the original shape.