COMPLETE SET – This DIY sliding door track system consists of 1 upper track and 1 lower track. FITS 3/4” THICK PANELS – Use on 3/4” thick glass or wood door panels. Great for showcases, display cabinets, and reptile enclosures. SMOOTH OPERATING – No glides or wheels needed. EASY INSTALLATION – Attach by drilling holes or using double-sided tape. HIGH-QUALITY ALUMINUM – Made of durable aluminum with dull mill finish. * Note: as extruded, may or may not have “die lines” (natural scratches). Can be painted. Outwater’s complete 4 ft. long sliding door track set comes with 1 upper track and 1 lower track. It is designed for 3/4" thick glass or wood panels. Popular applications include showcases, display cabinets, and custom reptile cages. Is your space shorter than 3 feet? No problem, the channel can be trimmed with a hacksaw for a custom fit. Outwater’s sliding door track is made of high-quality aluminum with great strength and some corrosion resistance. It features a dull mill finish which may or may not have die lines (natural scratches).