Hygienic and hypoallergenic Silicone Love Rings from Doc Johnson. Available in three sizes to suit your own size, they can be used alone or in combination with other sized rings for penile and testicular restriction. Love rings really do work, helping to delay ejaculation and sustain full erection by stopping the blood flow back out of the erect penis. When used in conjunction with a penis pump, love rings can help overcome penile dysfunction.