Single-cavity half-sphere mold Height = half the diameter Outside diameter (counting flange, the projecting border): for 4-inch mold, 5-1/2 inch (140 millimeters); for 4-3/4 inch mold 6-1/4 inch (160 millimeters) for 5-1/2 inch mold 7-1/8 inch (183 millimeters), and for 6-1/4 inch mold 7-5/8 inch (193 millimeters) Polycarbonate for commercial-grade durability Resistant to cracking and chipping (so you don't have to keep buying a new mold to replace a cracked or chipped one) Chocolate World Clear Polycarbonate Hemisphere Candy Mold
Sold by the piece (multiple chocolates shown only to illustrate contrast in sizes)

1 single-cavity half-sphere mold

Height = half the diameter

Polycarbonate for commercial-grade durability

Resistant to cracking and chipping (so you don't have to keep buying a new mold to replace a cracked or chipped one)

Clear for visibility during molding

Smooth surface for easy release and glossy surface of molded chocolate

Flange for grasping mold

Textured outer surface for slip resistance while holding mold

By Chocolate World, a Belgium-based company