Docking can be treacherous - it's a minefield of corners and edges that can cause damage. Protect your dock and boat with BoatTector's 90° Dock Corner Bumpers! These bumpers are constructed from heavy-duty vinyl that will not deflate or collapse and are designed for mounting directly to the sidewall of the dock at the corner. Due to the variety of mounting surfaces to which the bumper may be installed, mounting hardware is not included.