Yunko Silicone DIY 55 Mini Heart Shape Baking Mould Chocolate Mold Cake Ice Cube Specification18.5*11*1.4cm Single-hole length: 1.5cm Materials:FDA Food-grade Silicone Safe to use in ovens, microwave ovens, dishwasher and freezer Dust resistant, durable, impermeable, easy to clean It is measured by hand so deviation exist