High quality seatpost clamp made to last. Combination of design and highly accurate CNC machining ensures an even and consistent clamping force which prevents damage to seatposts and maintains function of droppers. Available in QR and bolted versions.IGUS bushing for smooth action and low maintenance Spherical seat bolt and nut ensure proper alignment and an even clamping forceLarge clamping area for improved function with dropper seatpostsCommon clamp between QR and bolted versions allows you to swap your set-up in the future2014 T6 aluminum clamp stainless steel bolt TECH SPECS table{border-collapse:collapse;width:auto;max-width:100%;} td{text-align:left;padding:12px;font-weight:350;word-wrap:break-word;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Material Aluminum Type Bolt-On Color Black Weight 20 Diameter 31.8 Defined Color Black