Perfect for Aquascapes.Top Grade Crystal Glass with superb workmanship for the most discerning aqua-scaper. Specifications:Crystal Glass with high grade silicon.Available Sizes:ModelDimensions (LWH)Glass ThicknessAccessories Included 30cm Standard 30x30x30cm5 Bottom Mat, Glass Cover, Glass Cover Holders 45cm Low Profile 45x25x20.5cm5Bottom Mat, Glass Cover, Glass Cover Holders 45cm Standard 45x30x28cm5 Bottom Mat, Glass Cover, Glass Cover Holders45cm Standard (30cm High)45x30x30cm5 Bottom Mat, Glass Cover, Glass Cover Holders 45cmCube45x45x45cm6 Bottom Mat, Glass Cover, Glass Cover Holders 60cm Low Profile 60x30x24cm6 Bottom Mat, Glass Cover, Glass Cover Holders 60cm Standard 60x30x36cm6 Bottom Mat, Glass Cover, Glass Cover Holders 60cm Tall 60x30x45cm6 Bottom Mat, Glass Cover, Glass Cover Holders60cm Wide60x45x45cm8Bottom Mat, Glass Cover, Glass Cover Holders90cm Low Profile (Cover) 90x30x30cm8 Bottom Mat, Glass Cover, Glass Cover Holders 90cm Low Profile (No Cover)90x30x30cm6 Bottom Mat