P.I.P. Disposable Base Mould is designed with 6 different models with excellent thermal exchange and the paraffin does not stick to it, so that the expensive and time-consuming process of cleaning metal base moulds will be no longer required. The curved edges and the completely flat and smooth inner surface allow easy block removal and paraffin ribbon continuity. Their built up sidewalls reduce risk of paraffin spillage during embedding and the standard dimensions are compatible with most of the tissue cassettes. They are spillage to be discarded after use, yet strong enough to be reused.