Reef 5size (mm): 200, 300,500*100*30~601. Adopt radiation-free materials such as cement 30 s30, safer 30 healthier than natural 5. Suitable for outdoor 30 indoor design as wall decoration. 2. Various type, color 30 size according to meet individual design. 3. Easy to fix 30 clean. 4. Steady 30 perdurable under the cauterization, aquosity 30 insulation conditions 5. Customer's design is welcome!