These moulds are made of silicone and are very flexible, which means they don’t need a releasing agent and your finished piece just comes out very easily and with the use of minimal force.
The moulds can be used for a variety of materials including wax, polymer clays, soap, gypsum/plaster of Paris , various types of resins etc.
The bottle base mould measures measure 9.5 cm by 7.5 cm in diameter. The bottle top measures 1.5 cm by 7.5 cm in diameter.
It comes with 2 moulds and 1 pump to get you started.