This listing is for standard stock lengths of clear solid acrylic round rod/bar and hollow tube. Select your required item from the drop-down box either rod or tube then the size and finally the length, other lengths also supplied please contact us. The rod & tube are a great alternative to glass as it has a greater impact strength, weighs less and is much cheaper this material is also food safe and has a light transmission of 93%. Rod diameter tolerances, 2-4mm +0.3mm, 5-8mm +0.5mm, 9-12mm +0.7mm, 15mm +0.9mm, 20mm +1mm, 25mm +1.2mm, 30mm +1.4mm, 35mm +1.5mm, 40mm +2mm & 50mm +2.5mm.