Is the RESTUBE safety buoy intended for everyone, regardless of their stature?

RESTUBE ACTIVE, EXTREME, AUTOMATIC and LIFEGUARD have a buoyancy of 75 Newtons, which can lift around 7.5kg out of the water. In a critical situation it is most important that the airways are not submerged, i.e. that the head is above the water up to at least mouth. To do this, about 4kg must be lifted out of the water. If you lean over the buoy, the RESTUBE safety buoy buoyancy is sufficient. BEACH has a drive of 50 Newtons, which lifts about 5kg out of the water. This is also sufficient for an adult, even if the 75N versions of the safety buoy are of course a bit more comfortable.