Shopsmith 510 520 Pre 1986 Table System Upgrade Attic Ventilation kit contains 35 plastic bricks kit contains 35 plastic bricks with 34 plastic connectors and 2 end caps 75 Modular Design No Unfinished Sides None CA Residents: Prop 65 Warning(s) Yes Soft Close Doors Yes Toe Kick No Number of Doors 4 Warranty 2 year limited Common Width (Inches) 80 Sink Offset N A Cabinet Depth (Inches) 21 a more versatile rip fence and direct reading rip fence scales for your Model 510 machine 8 new extruded rails for your Model 510 worktable and extension tables offer added rigidity and precision over your tubular Model 510 rails and allow the use of the new other accessories