Bondage is simply the act of restraint and sensory deprivation. It could be as simple as a pair of handcuffs or a blindfold or something more complex. Any product you decide to use, the goal is the same. To restrain your partner from movement or prevent them from using one of their senses, like sight for example.

S&M is the pleasure of pain. This is where whips, clamps and other seemingly torturous devices come into play. Some people find these little stings and pinches arousing. Also, things like feathers for tickle torture, bondage rope that is designed not to leave rope burns and bondage candles that have special wax designed not to exceed a certain temperature to avoid serious burns.