Supplied as a set of 4, these Elephant Feet raisers are designed to lift various items of large furniture such as chairs, sofas, beds and tables by 90mm (3.5 inches).They are strong and very robust, with a deep, non-slip recess at the top, and they are made of a single piece of tough plastic so there are no joints or seams that could come apart under stress. The recess is deep enough to hold a castor - and most other types of leg - very securely and the broad base makes it extremely stable. The neutral light grey colour makes it unobtrusive in most environments.