The glass test tubes are uniform with rounded bottoms. The thickness of the glass also allows for resistance with chemicals while allowing for heat transfer. They are made to withstand demanding trials in a laboratory setting. 

•  Capacity: 3ml, O.D. x Height: 10 x 75mm, Thickness: 1.0mm.

•  Capacity: 5ml, O.D. x Height: 12 x 75mm, Thickness: 1.0mm.

•  Capacity: 7ml, O.D. x Height: 12 x 100mm, Thickness: 1.0mm.

•  Capacity: 13ml, O.D. x Height: 15 x 125mm, Thickness: 1.2mm.

•  Capacity: 15ml, O.D. x Height: 15 x 150m, Thickness: 1.2mm.

•  Capacity: 27ml, O.D. x Height: 18 x 150mm, Thickness: 1.2mm.

•  Capacity: 45ml, O.D. x Height: 20 x 150mm, Thickness: 1.2mm.

•  Capacity: 38ml, O.D. x Height: 25 x 100mm, Thickness: 1.2mm.

•  Capacity: 55ml, O.D. x Height: 25 x 150mm, Thickness: 1.2mm.

•  Capacity: 70ml, O.D. x Height: 25 x 200mm, Thickness: 1.4mm.

•  Capacity: 100ml, O.D. x Height: 32 x 200mm, Thickness: 1.4mm.

•  Capacity: 150ml, O.D. x Height: 38 x 200mm, Thickness: 1.4mm.