INCLUDES: (4) 36 in. Double-Cut Profile Universal T-Track w/ EZ Mount Predrilled Holes; (4) T-Track Hold Down Clamp, 5-1/2" L x 1-1/8" W FEATURES: T-tracks are equipped with a double-cut profile for hardware versatility and pre-drilled mounting holes for easy installation PREMIUM QUALITY: Constructed out of extruded anodized 6463 aluminum, delivering a lightweight design that possesses an impressive strength to weight ratio, along with corrosion resistance and superior resilience VERSATILE DESIGN:Universal T track designed to accommodate 5/16" and 1/4" t-bolts, and 1/4" hex bolts SPEC - T-Track: Tndividual t-track 3/4" x 3/8" x 48" - size allows for easy and solid embedding without sacrificing surface platform integrity SPEC - HOLD DOWN CLAMP: 5-1/2" L x 1-1/8" W; Body: Anodized Aluminum; Pads: Non-Marring Rubber; T-Bolt: 3-1/2" L with 5/16"-18 Thread