Polar Bear Interior Handrail Brackets Use as a L-reception bracket for handrail applications. Simple screw down installation. Screw holes are not visible, so they fit neatly and neatly. The screw hole in the seat is "long hole" so you can tilt the screws to the student (thin column used to attach the wall between the blind/pillar and the pillar). The round rod and bracket also securely hold the seat of the bracket and the wall base (such as the base column). Size indicates the width of the corresponding log bar. Please choose the size that fits your round rod.