The rigging of a sailing ship is made up of the ropes and/or chains used to support the ship's masts, yards and sails. The standing rigging is used to support the masts. The running rigging supports the yards and sails. Some types of sailboats that have unsupported masts do not have any rigging. These include the junk rig and catboat rigs. Bermuda sloops with a single mast and one headsail use fairly simple rigging. Cutter-rigged ketches and schooners have the most complex rigging.