Tiploks are made of 1/8″ thick clear acrylic. The acrylic is durable, so Tiploks can withstand extremely hot or cold temperatures. Since Tiploks are clear, they match any color downspout. The clips have a height of 7/8″ and the width and depth of the clips is sized to fit either 2″x3″ or 3″x4″ downspouts.