If you are looking for a high quality heater for your cute fishes and turtles, then order now and bring our heater back home, it will be a best gift for your aquarium. Notices 1, Before powering, make sure the heater is completely submerged in the water. 2, Before removing the heater out from the water, make sure the heater is unplugged to avoid dry heating. 3, Please NOT put the aquarium heater into the sand as this will cause INACCURATE heating. Size: 25W-18CM,50W-18CM,100W-21CM,300W-32.5CM,500W-32.5CM Package contains ·1 x heater with 2 x suckers ►After receiving the goods, if there are any missing parts, please contact us in time, we will resend it to you as soon as possible. ►Because of different spotlights and different screen colors, actual objects may have a certain color difference, which is normal ►Manual measurement of product size may have an error of 1-3cm, and the delivery time is usually 10-25 days. ►If you have not received your order within 30 days, please contact us in time. If you are not satisfied with the product, please contact us and we will be happy to help you. If you are satisfied with our products, please remember to give us 5 stars.