DescriptionHigh quality acrylic material,sturdy and durable, safe. Designed for helping to provide support and stabalize coral plant.Also can be used to separately place into aquarium or fish tank. Easy and convenient to use and install.Feature- Color: White. - Material: Acrylic. - Size: About 2.1 x 2.1 x 1.8cm. - Made of high qulaity material, durable and practical. - Helping to provide support and stabalize coral plant. - Especially suitable for fish tank, aquarium and similar equipment. - Made of acrylic material, solid construction, safe and durable to use. - Simple to install, easy to clean.