1/4" Plastic Sliding Track Works with 1/4" material. Works with glass, wood, aluminum, or plastic doors Easy and Quick Install with nails or Glue Instructions on packaging and made in USA Door glides on plastic track without much effort 1/4" Plastic Sliding Track comes with top and bottom track. For 1/4" sliding glass or wood doors. Quick and easy install with nails or glue. Doors will glide easily and quietly on ridge in center of track. Tan color blends with most any decor. Packaged in shrink wrap containing 1-piece top guide and 1-piece bottom track. Will most likely work with lower thicknesses up to 1/8" as well depending on the material used.