HI- i an not fishing man but i have some  fishing weight moulds for sale  and this is one of them. The weight  mould is made of aluminium alloy measuring 140 L x 75 W x  H 32 mm that splits in half with two small  correct positing location pins. The mould is marked  with a few center pop marks on the inside of the mould weight face EG ( 16. )The weight imprint size measures on one half is 112 mm long excluding the line attachment eye. 46 mm  wide at widest point and approx 12 mm deep at the lowest point