Size：
19.5 x 5.5 x 8.5 cm (A)
17.5 x 12.5 x 8.5 cm (B)
23 x 10.5 x 9.5 cm (C)
．They are all made of ceramics which can have good effect
for water of tank , and also good for environmental protection.
．For small fish and shrimp, providing hiding and breeding space for fish and shrimp.
．The moss can be tied by line and planted on the product to create a more natural ecological environment.