Tough synthetic cordage is highly resistant to abrasion, ultra-violet degradation, rot and mildew. Central tube suspension with smoothly polished tube ends prevent cord abrasion typical of other, less labor-intensive suspension techniques. Heavy gauge polished stainless steel rings provide sturdy support and enduring beauty. Tempered aluminum alloy tubing is custom manufactured to our exacting specifications and will never rust. Our corrosion-protective finish preserves chime's appearance and increases durability in hostile environments (acid rain, salt air). We cut and precisely tune each tube by hand using just intonation, except for the whole tone scale, which uses equal temperment. Tubes are tuned to A440, standard orchestral pitch, using the latest in technology. Solid polyethylene clappers provide superior tonal quality and outdoor durability. The windcatcher, of the same finish and material as the tubes, is the ideal size, weight, and shape for optimal chime performance in 8 - 10 mph wind velocity. The corrosion protective finish provides durability in all kinds of outdoor environments (acid rain, salt air, etc.) The windcatcher hook assembly provides simple but effective method of varying the chime's activity level. The clapper slides on the central cord up into the ring creating a convenient "off-on" feature. Windcatchers can also be easily removed to subdue chime activity under blustery conditions. A rigorous final inspection ensures that your chime is up to our high standards of acoustic and visual quality.