The marble mould measures 100mm x 80mm x 40mm deep, with the handle the entire length is 230mm.
The hemisphers measure 5mm , 7mm , 9mm , 11mm , 13mm ,15mm ,17mm , 19mm & 33mm on one side
The alternative side has 21mm ,23mm, 25mm ,28mm, 29mm & 32mm
The heavy weight allows you to work the rim of the marble without the mould moving.