Sliding Window Roller Assembly Part Number: 508110 Price: $2.59 Quantity discounts available QuantityPrice Quantity: Each-+ Add to Cart DescriptionAdditional InformationC-1700 / 2700 Sliding window - Plastic housing can be used with 1 or 2 wheels Material: PlasticTop Width: 7/8" Bottom Width: 5/8"Length: 1-3/8"Height: 3/8"Priced and sold each.