The chimes feature steel powder coated support poles, anodized aluminum chimes, and stainless steel hardware. The chimes can be sold as a set or individually. The set includes seven chimes and two mallet poles. The chimes are all different sizes and numbered from longest #1 to shortest #7. The tallest chime measures 8Ã¢ÂÂ-8.5Ã¢ÂÂ above the ground. The shortest chime is 7Ã¢ÂÂ-4Ã¢ÂÂ above ground. Each mallet pole includes two mallets attached with steel cables. We recommend arranging the chimes in an arc because it creates a nice surround-sound effect, however they can be laid out however you like such as a wave or straight line. Two layout ideas are: #6, #4, mallet pole, #2, #1, #3, mallet pole, #5, #7 #1, #2, mallet pole, #3, #4, #5, mallet pole, #6, #7The musical chimes can be installed in-ground or surface mounted. The spacing between chimes and mallet poles must be 18Ã¢ÂÂ between each chime and 11Ã¢ÂÂ between each mallet pole and chime.