Dunlop 211 Tempered Glass Slide， Heavy Wall Thickness， Small<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Short/small dimensions: </span></li><li><span class="a-list-item"> 17mm inside diameter， 25mm outside diameter， 51mm length. Fits ring size 6.5 </span></li><li><span class="a-list-item"> Small dimensions: </span></li><li><span class="a-list-item"> 17mm inside diameter， 25mm outside diameter， 51mm length. Fits ring size 5.5 </span></li><li><span class="a-list-item"> Heat-treated and annealed to produce a flawless tube </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31LSsdJg2-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21zWIeg%2BbsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/11zL7xqwCaS.png">