Destro Double-Bolt Seat Post Clamp

DESTRO Double-Bolt Seat Post Clamp SPECIFICATIONS Style: Retro Style Double Bolt Seat Post Clamp Material: 6061-T6 Aluminum fully CNC machined Sizes:  28.6mm (1-1/8") I.D.   (for most chromoly frames that use 1" seat posts)            31.8mm (1-1.4") I.D.   (for most aluminum frames like Big Ripper, Big Flyer,                                                Throne, Monster Quad, So Cal Flyer, Blocks Flyer ) **Does not work on STR Quadangles or Early 2010 Big Rippers** Hex Key:  5mm  Colors: Black, Blue, Gold, Red, Raw Silver, Mirror-Polished, Limited Edition Made in USA