Feature: These are the newest mold, which are applied for hollow geometric jewelry making, Including Square, Round ,Ellipse shape with different size, U can make Micro landscape, quicksand resin jewelry and some transparent sealed ornaments by these molds, Do anything what u want ,just need use your imagination. Usage: 1:Smear the mold release agent on the silicone mold 2:Mix the epoxy to suitable ratio.Mix toner into the epoxy 3:Pour the epoxy into mold,please don't fill it up ,and leave half. 4:Cover the other half of mold,Wait until epoxy curing 5:When emoulding, u can use bottom mold, and make a lid, 6:Hollow molds allow u to create some micro landscape in hollow place, and then cover the lid, a beautiful geometric resin product has finished. Specifications: Material: Food Grade Slilcone Mold Color: Transparent Size: 1# Small Half Sphere: Finished Ball Diameter: 10 mm-12 mm-14 mm 2# Medium Half Sphere: Finished Ball Diameter: 16 mm-18 mm-20 mm 3# Large Half Sphere: Finished Ball Diameter: 22 mm-25 mm 4# Half Sphere Bottom Mold : Finished Ball Bottom Diameter:7.5- 9-11.5-13-15-17-19-23 mm This is well matched with hollow Half Sphere mold, More Detailed,Please see Photo, Quantity: 1 Set Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package includes: 1 Pc x Small Half Sphere Mold 1 Pc x Medium Half Sphere Mold 1 Pc x Large Half Sphere Mold 1 Pc x Half Sphere Bottom Mold