Acrylic is a lightweight, tough plastic that offers transparency similar to that of glass. With appropriate printing and spraying processes, it can give acrylic products good surface decoration effect Good optical clarity (93% light transmittance). Acrylic rods are durable, tougher than glass. Please allow a tolerance of +/- 0.2mm on all pieces. Suitable for lighting accessories, architecture, handicraft, model making, exhibition displays and hobby using. Color: Clear Dimension:500mm x 8mm / 20inch x 0.31inch(L*D) Light Transmittance: 93% Refractive Index: 1.49 Heat Distortion Temperature: 85 C Softening Temperature: 94 C Tolerance: (+/-)0.2MM Package Content: 1 x Acrylic Round Rod