Vortex mixer (shaker) with variable speed of 600 to 2,700rpm for gentle shaking to rapid vortexing of samples Timer can be set for up to 60 seconds in touch mode and up to 60 minutes in continuous mode Comes with a removable cup head for a single tube and a 3" platform for a beaker, a flask, or multiple tubes Metal housing and shock-absorbing feet provide a stable platform to help prevent walking Suitable for use in cold rooms and incubators › See more product details