LET'S RESIN Silicone Putty, 1Lb/454G Silicone Mould Making Kit, Strong & Flexible, Easy 1:1 Mixing Ratio for Reusable Silicone Moulds, Casting, Resin, Soap & Candle Making. SIMPLE MOULD MAKING KIT - Simply mix equal parts A (blue) and B (white) by hand.
