... : stainless steel and aluminum 2 It is stretch,conveniently 3. Diffrent styles with good quality Descriptions:1. Parts: sliding wheel , infusion ... -shaped : 1.80*0.80*1.80*0.80 meters.3. Material: aluminium alloy track, plastic sliding wheel, stainless steel ... infusion support4. It is easy to install.5 . With expanded and contracted feature, saving space, easy of use, conveniently ...