Abstract: A sealant contour forming tool comprises an elongate substantially cylindrical body having an open front end and an open rear end. The front end has an edge lying on a plane which extends obliquely to a central axis of the body. The body is formed from a resilient material and further comprises a longitudinal opening extending longitudinally between the front open end and the rear open end. The longitudinal opening being operable to resiliently widen and narrow in response to an appropriate force applied to the body adjacent the elongate opening.