This durable, weather-resistant orange and yellow reflective cover fits most angle pitot tubes. Fits pitot tubes up to 6 1/2" long and 3/4" diameter It stands out in daylight or darkness under all weather conditions, so it can't be missed. Large sewn on Velcro tabs keep it securely in place under all conditions. Fits pitot tubes up to 6 1/2" long and 3/4" diameter