Clamps
In BDSM, clamps are used as a stimulus or punishment tool and can serve both pleasure and intense physical stimulation. Sensitive body parts such as nipples, labia, or testicles are stimulated through pressure or pulling. Clothespins are a simple version, but they should be used with caution.
Consent, careful use, and attention to pain threshold, skin condition, and circulation are important. Too much pressure can cause injury, bruising, or tissue damage; clamps should therefore not be left on for too long or used on already irritated or injured skin. If in doubt, softer tools made specifically for BDSM play are the safer choice.