This 24 Element Static Mixer with 15 Gauge Needle Tip is for use with Roadware 10 Minute Concrete Mender™ 600ml cartridges. It may also be used with the 91300 Roadware MatchCrete Clear™ 600 ml cartridge under certain conditions. The mixer is engineered for precise blending and controlled dispensing. Featuring a long, durable mixing chamber, it ensures thorough and consistent mixing for optimal bond strength. The 15 gauge needle tip allows for pinpoint application into hairline cracks, narrow joints, and tight repair areas.