Tips: 1: If the mold is not filled with glue, then use double-sided tape to fix the top to avoid deformation caused by the top slip. 2: If the glue solidifies too quickly, it will cause the inner mold to shrink together and cause deformation. Please use ice water to cool when using this large mold. Product Description: High-quality silicone, safety, high Flexible, full transparency, Super easy to de-mold Fill the entire mold about 1200 grams of resin, You Can Make Any Size Below 15.7cm artworks Be careful to place the silicone mold insert into the plastic shell accurately, Make sure all sides flush. Pour alcohol into the outer shell make it easy.It is recommended to use "mold release". The mold is used to create the fantastic pyramid-shaped artwork, Mold is reusable The inner silicone molds has a service life, and the outer shell will not be lost. An additional inner silicone molds is a more economical solution Package included: 1 pcs Plastic Outter Shell, size 17.6*15.7cm 2 pcs Inner Silicone Molds, size 15.4*15.7cm