These Super Soft silicone C-ring from Tantus is broad for comfort and safety.
The C-ring holds the testicles down and keeps the testes from contracting thus slowing down ejaculation.
The constriction takes orgasm from about 6 seconds to up to 45 seconds.

The Super Soft ring is stretchier than the standard Tantus C-rings, so it is easier to put on.
Great for beginners too.

Last but certainly not least, you don't have to put it on before an erection occurs, the silicone is stretchy enough you can put it on anytime. Materials: 100% Silicone, Size: 114mm x 38mm, Power: None Required