WIDELY APPLICABLE SIZE- This featherboards compatible with for PRS3020 use in standard 3/8inch & 3/4inch (9mm & 19mm) miter slot or t-slot, and associated with wedge-lock system and split rail miter bar construction provide maximum hold for bandsaw, table saw and router tables fence.ACCURACY OF CUTS & SAFETY FIRST - The purpose of featherboard is to prevent fingers from slipping into the saw blade. Feather board can help ensure an accurate cut by securing a workpiece against the fence when you are cutting, giving a nice and clean cut on that edge and reduce wood kickback, which makes it a safer working environment for you. Every woodworker needs a professional featherboard.DURABLE, RELIABLE & ERGONONMIC DESIGN - The featherboards are made of an extremely durable plastic composite body & has an innovative & a simplified design that have special angled fingers & full of toughess apply steady & pressure so this kit possesses additional hardware for adaptive mounting solutions, including miter slot brackets for horizontal mounting, vertical mounting for tracks and plastic spacers for featherboards.SAFE AND CONVENIET DESIGN: Our Featherboard have Dual Safety Lock-System design to reduce risk of vibration and loose safer than featherboard has Single System design.colour: blueMaterial: plasticSize: about 165x130mmPackage Contents:2 x FeatherboardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.