Gibraltar Rack accessory Electronics Mounting Arms - SC-GEMCMounting clamp arms for electronics or laptops Multiple applications for all musicians Designed to support E drum modules, laptops, mixers, small keyboards, or DJ controllers Small contact face for optimal cooling of the appliance No blockage of the cable slots Arms are fitted with adjustable rubber stoppers that slide to fit Pick up width of the arms up to 37 cm Mounts to any 1. 5" (3. 81 cm) rack bar (1 pair)