BOLA stirring shafts are made of a stainless steel shaft with PTFE shell and an all-PTFE stirring unit. The stainless steel core provides the required strength, allowing them to be clamped in the chuck. The medium comes into contact with PTFE only. The stirring shafts are resistant to nearly all chemicals and can be used at high temperatures.

Dimensions of the BOLA stirring shafts correspond to (KPG) glass stirring shafts, making them fully interchangeable.

The ideal addition to the company's existing stirring shafts with a fixed stirring unit. Additional blades can be freely positioned in height and direction of rotation on any shaft with a diameter of 8 or 10 mm (a matching fork wrench is included with each additional blade). The blades themselves are made of PTFE while the fasteners are made of a special PTFE compound. High chemical and thermal resistance is thus guaranteed.

With this "building block system", users can assemble their very own stirrers as required.