Yonico 22000 Vertical and Horizontal Feather Board Helps Keep Fingers Clear of Work Area Diagonal Tensioners Prevent Kickback Can be Installed in 7/8" Miter Slot or 1/2" T-slots Sturdy Plastic Composite Construction Satisfaction Guaranteed & Lifetime Warranty Helps Keep Fingers Clear of Work Area Diagonal Tensioners Prevent Kickback Can be Installed in 7/8" Miter Slot or 1/2" T-slots Sturdy Plastic Composite Construction Satisfaction Guaranteed and Lifetime Warranty