All Nature silicone mold for epoxy resin. Is made from high-quality silicone handmade from order.The blank is a natural geode, so there may be small imperfections on the surface that make your end piece look more natural. 
Designed by Moldybyjenny carefully made by Chooseyours11 in Austria 
 
size
Length: 136mm
Width: 89mm
Height: 18mm
Indentation for shelf Oval 
Length: 73mm
Width: 45mm