Easy to use， quick response <br />Suitable for 30.4mm， 30.8mm， 30.9mm， 31.6mm seat tubes， such as frames of GIANT and MERIDA <br />Color: black<br />Material: Aluminum alloy<br />Diameter: about 34.9 mm<br />1 x Clamp<br /><img src="//agdetail.image-gmkt.com/m430/082/301/842301082/img/agdetail.image-gmkt.com/082/301/842301082/img/img6.eachbuyer.com/x12/p93/zx26_1.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/082/301/842301082/img/agdetail.image-gmkt.com/082/301/842301082/img/img6.eachbuyer.com/x12/p93/zx26_2.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/082/301/842301082/img/agdetail.image-gmkt.com/082/301/842301082/img/img6.eachbuyer.com/x12/p93/zx26_3.jpg" />                                                        <img src="//agdetail.image-gmkt.com/m430/082/301/842301082/img/agdetail.image-gmkt.com/082/301/842301082/img/img6.eachbuyer.com/x12/p93/zx26_4.jpg" />