How much does this cost to the nearest dollar?

Prime-Line N 6582 Nylon, Spring-Loaded Bi-Fold Door Top Guide Wheel (2 Pack)
Product Description This is a bi-fold door guide wheel features a spring-loaded design allowing for self-adjustment while in the track for smooth operation. The guide wheel fits a 1 inch to 1-3/8 inch thick bi-fold door. From the Manufacturer This guide wheel is constructed from nylon. It features a spring loaded top mount design. It has the ability to self adjust while in the track for smooth guiding of your lead doors. Will fit a 1 to 1-3/8 in. thick door up to 30 lbs. Used by a variety of bi-fold door manufacturers Used on doors up to 30 lbs. 7/8 inch diameter roller Nylon base and

Price is $3.00

Price: $3