Drum, test-tube holder, STR4/1
Designed to rotate test-tubes in an end-over-end movement. Comprises a square metal drum that can accommodate a choice of plates fitted with tube clips. Up to four plates can be mounted on the drum. Easy fitting via a push-button mechanism.

Drum, two platforms, STR4/2
This drum accepts 2 x 250ml conical flasks or reagent bottles for end-over-end mixing. The samples are securely held in place by a collar that fits around the neck of the flask or bottle and is secured by two washers.

Drum, figure 8, STR4/3
Drum holds the vessel at a 45° angle so it is rolled and turned end over end at the same time giving a vigorous figure of 8 mixing actions. The sample container is retained by a strong Velcro strap. Accepts almost any container including reagent bottles, powder jars, and paint tins up to 200mm in length and 120mm in diameter.

Drum, bottle holder, STR4/4
This drum consists of a four-segment Perspex® cradle. Each segment is fitted with a fully adjustable Velcro® strap to hold bottles and other containers up to 120mm in diameter and up to 300mm in length.

Drum, microcentrifuge tube, STR4/5
Designed for thorough end over end mixing of 1.5ml microcentrifuge tubes. Four racks (included) can be held securely in the drum. Each rack can accommodate up to 60 microcentrifuge tubes, making this unit ideal for a high throughput laboratory.