100875 Features: -Stay roller. -Embossed frame with two wings provides greater bracing and holding strength versus conventional single-support, corner-iron frame. -Wheel is reversible and can be used on either side of frame. -Can be adjustable. -Designed for use as a guide on large sliding doors up to 2-1/4" thick. -Dimensions: 3.29" H x 3.51" W x 4.25" D.