Bath Bomb Mold Metal 1 Set 2 Half Sphere::Premium Finish :: Easy to Use :: Bath Fizzie Molds::Round Mold for Bath Bombs::Durable Material Perfect Size METAL BATH BOMB MOLDS: Large Metal Bath Bomb Mold Set with Premium Finish for Perfect Bath Bomb EASY TO USE:Fill and Press. It's that easy! DURABLE: Made with aluminium metal to ensure durability IDEAL SIZE: 2.56" by 1.28" - close to a tennis ball size (not quite) PERFECT RESULTS: Easy to press and easy to remove. Bath Bomb Molds by Ian's Choice produce the optimal result