Product Description Optrex Warming Eye Mask is designed to relieve tired eyes which resulted from many different activities that require intense use of the eye muscles for long periods. The Eye mask is disposable and self-heating, it starts to warm up instantly when opened, reaching its optimum temperature between 3-5 minutes. Delivers a gentle warming steam that to moisten and soothe tired eyes. Ideal to use at home before bed time or while travelling. The Warming Eye Mask is available unscented or with lavender fragrance. Pack Size: 8 Eye Masks