High density materials and products

A fishing weight comprising:

• at least two main body parts having faces adapted to be closed together on a fishing line;
• flexible hinge means linking said two main body parts whereby a gap between said faces may be varied by flexure of said hinge;
• each said main body part comprising a mass of metal particles embedded in a polymeric matrix formed from a settable or hardenable material;
• said hinge means being formed by a strip or wire of a deformable but relatively rigid metal different from the material of said main body parts;
• and
• said strip or wire extending from an interior portion of one of said main body parts to an interior portion of the other of said main body parts, end portions of said strip or wire being molded into the respective interior portions of the main body parts;
• the attachment of said main body parts by said strip or wire being such that when said faces are closed together in an orientation adapted for enclosing a fishing line therebetween, said strip or wire is in a transverse bent configuration around the location adapted to receive the fishing line whereby the line may be gripped between said faces by the relative rigidity of the wire or strip in that configuration.