The sets and kits always offer a choice, and it is a possible reason why we like them that much. This set of ULTRABALL cock rings includes a black and a clear c-ring for greatest sensations for both of sexual partners. The erection will last longer and the eruption will come a bit later and more intense. Isn’t that what you wanted? If that is not enough, these ultimate rings can be applied together or separately. The FLEX-TPR material will serve you long term without loosing its properties. Safe and free of phthalates to prevent allergy or skin irritation.