Track Size 1" x 1/8" (25 mm x 3 mm), Track Type: Silver, Length 4' (1.2m), Fastener Size 1/4" FH (6mm), Fastener Spacing 4" (102 mm), Stop Pin. Dia. 1/4" (6 mm), Weight Foot 4.3 oz. (122 g), Works with these End Stops 74-35-G