Once you’ve chosen the Harbour Chair shell style that will be cradling and supporting your body, you can now also choose a clover-shaped swivel base so you can spin around as needed – and roll around as wanted, should you opt for caster wheels. All new Harbour Task Chairs with a swivel base or swivel with return have been upgraded with QuickClick gliders, as used on all other chairs in our collection. The chairs are delivered with the plastic gliders attached and come with a bag of supplementary felt castors that allow you to easily switch from plastic to felt.