Bend restrictor

An apparatus for restricting the bending of a tubular member underwater, said apparatus comprising a plurality of interlocking modules each formed from a first half shell component circumferentially displaced from a second half-shell component, each of the first and second half-shell components comprising a first end and a second end and side edges extending between the first and second ends, wherein the first half shell component comprises one or more projections extending from the side edge thereof and the second half shell component comprises one or more grooves in the side edge thereof, the projections and grooves being angled the side edges of the first and second half shell components towards the first end of the components, the arrangement being such that when assembled together each of the one of more projections of the first half shell component are inter-engaged with a corresponding groove of the second half shell component to secure the two half shells together such that the two half shells cannot be radially separated without axial displacement of one half shell component relative to the other.