HomeKit Includes:1x AFSB-1XS SMALL BALL BASE1x AFSB-2XS SMALL KNUCKLE1x AFSB-SBH-XS SMALL SENSOR BRACKET HOLDER1x AFSB-SB-8 STANDARD SENSOR BRACKET 8MM Weight: 0.271 lbsXS SENSOR BRACKET 8MM SINGLE ARM KITSKU: ACCU-AFSB-1000-SBKIT-8$122.25PriceQuantityAdd to Cart