Round head: The all rounder attachment for large muscle groups to give you full body relief. Bullet head: Ideal for zoning in on localised areas or for targeting a muscle knot. Can also be used in and around joints. Fork head: Targets muscles around the spine and neck. Flat head: Excellent for large muscle groups, like thighs, calves and back. Spine head: The attachment of choice for soft tissues, particularly for around joints and organs. Curve head: Allows you to work on muscle knots, delivering pressure deep into the muscle.