This item is a water level measuring gauge, made of premium aluminum alloy, durable for long time using. You can check the depth of the pond and have faster, more accurate data. Easy to take and store for repeated times using. Features -Color:As shown. -Material:aluminum alloy -Size:50.00X10.00X0.20cm/19.65X3.93X0.08in - Durable and practical, this measuring gauge can serve for a long time application to avoid frequent replacement. - It can effectively observe of water level, save your time and efforts. - Aluminum alloy thicken materials, not easy to deform and break, durable, support long time using. - Used to mark water levels in and lakes, easy to use, and with reflective design, can be seen even at night. - Sizes and numeral are in the surface for clarity reading, stable and . Package list: 1 Level Gauge