Blindfolds are a popular sensory deprivation tool used in BDSM and intimate play to heighten sensations and enhance the element of surprise. A blindfold is a piece of fabric, material, or eye mask that covers the wearer's eyes, blocking their vision and temporarily depriving them of sight. By limiting the sense of sight, blindfolds can intensify the wearer's other senses, such as touch, hearing, taste, and smell, leading to a heightened state of arousal and anticipation.