ProductsHand toolsMeasuring tools Glass marble Article no: 990070 EAN: 7391142900703 Glass marble Ø 40 mm with “TEBO” laser engraving. Comes in an exclusive storage box with fabric lined inside and magnetic closure. The glass marble is used to control the slope to the drain. product data sheet your tagging in the data sheet: Specification Diameter 40 mm Weight (g) 84 g Glass marble × Previous Next