???Have you ever used a macro lens to take photos? It is good at shootings for small things like flowers， jewels， and insects. With an excellent macro lens， you can take wonderful photos which have splendid details. We are pleased to introduce this Autofocus Electronic Macro Lens Extension Tube for Canon SLR Lens to you. It is a perfect accessory designed for Canon SLR Lens. In addition， made of fine metal， the extension tube is practical and durable for use. Featured compact and lightweight， it is easy to carry. Hurry up! Get this smart accessory for your camera!                                    Features            New and in good condition<br>Made of fine metal， durable for use<br>Compact and lightweight， easy to carry<br>Easy to install and work well<br>Assist the macro lens to shoot brilliant photos<br>It is compatible with Canon SLR Lens<br>Suitable for professionals or amateurs<br>                                                            Specifications             Dimensions     ( 2.56 x 3.28 )" / ( 6.5 x 8.3 )cm (Diameter x L)    <br> Weight     6.46 oz / 183 g    <br> Material     Metal    <br> Color     Silver-white Bayonet    <br> Compatible with     Canon SLR Lens     <br>                                                             Package Includes            3x AutofocusElectronic Macro LensExtension Tube (13mm 21mm 31mm)<br>