The has a large 13"L x 7-1/4"W platform that travels 5-1/4" fore and aft. The slide is made of high-strength anodized aluminum.• Large 7-1/4"W x 13"L, 0° platform• Travels 5-1/4" fore and aft• High-strength anodized aluminum• Can be used as a box or pedestal mount• Adds 2" to the height of the seat• Mounting Pattern: 5" x 12" top plate, 5" x 5" slide plate• Mfr. Warranty: 5 years Can be used as a box or pedestal mount Adds 2" to the height of the seat | Universal Trac-Lock Slide