Features:<br />Thickness: 2.8 ~ 3.1mm<br />Inner diameter: 16mm<br />Fasten hole: 3.8mm<br /><br />    Specifications<br />General<br />	 Model: D02                                                  <br />                        Material: Acrylic                                                  <br />                        Compatibility: Ardunio                                                	<br />Weight and Size<br />	 Product Weight: 0.007 kg                                                  <br />                        Product Size(L x W x H): 6.7 x 5.6 x 2.8 cm / 2.6 x 2.2 x 1.1 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Holder                                                	<br /><br /><br /><br />                                                <br />