Silicone mould round pen holder

Silicone mould to make a round pen holder. Ideal to use with Jesmonite! Dimensions: 11 cm x 7.5 cm 11 cm x 7.5 cm Jesmonite AC100 needed to fill this mould: 150 ml liquid + 375 g base Jesmonite micro concrete needed to fill this mould: 98 ml liquid + 490 g base.